CVE-2011-2526

tomcat: security manager restrictions bypass

Severity Score

5.3

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Apache Tomcat 5.5.x before 5.5.34, 6.x before 6.0.33, and 7.x before 7.0.19, when sendfile is enabled for the HTTP APR or HTTP NIO connector, does not validate certain request attributes, which allows local users to bypass intended file access restrictions or cause a denial of service (infinite loop or JVM crash) by leveraging an untrusted web application.

Apache Tomcat v5.5.x anterior a v5.5.34, v6.x anterior a v6.0.33, y v7.x anterior a v7.0.19, cuando sendfile está habilitado para el conector HTTP APR o HTTP NIO, no valida ciertos atributos en la solicitud, permitiendo a usuarios locales eludir las restricciones de acceso a archivos o causar una denegación de servicio (bucle infinito o caída de JVM) mediante el aprovechamiento de una aplicación web no confiable.

Potential security vulnerabilities have been identified in 3rd party software used in HP XP P9000 Performance Advisor running Oracle and Apache Tomcat Software. HP has updated the Apache Tomcat and Oracle database software to address vulnerabilities affecting confidentiality, availability, and integrity. Revision 1 of this advisory.

*Credits: N/A

CVSS Scores

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

Low

Attack Vector

Local

Attack Complexity

Medium

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

Attack Vector

Local

Attack Complexity

High

Authentication

None

Confidentiality

Partial

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2011-06-15 CVE Reserved
2011-07-14 CVE Published
2024-08-06 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-20: Improper Input Validation

CAPEC

References (36)

URL	Tag	Source
http://osvdb.org/73797	Vdb Entry
http://osvdb.org/73798	Vdb Entry
http://secunia.com/advisories/45232	Third Party Advisory
http://secunia.com/advisories/48308	Third Party Advisory
http://secunia.com/advisories/57126	Third Party Advisory
http://tomcat.apache.org/security-5.html	X_refsource_confirm
http://tomcat.apache.org/security-6.html	X_refsource_confirm
http://tomcat.apache.org/security-7.html	X_refsource_confirm
http://www.securityfocus.com/archive/1/518889/100/0/threaded	Mailing List
http://www.securityfocus.com/bid/48667	Vdb Entry
http://www.securitytracker.com/id?1025788	Vdb Entry
https://exchange.xforce.ibmcloud.com/vulnerabilities/68541	Vdb Entry
https://lists.apache.org/thread.html/06cfb634bc7bf37af7d8f760f118018746ad8efbd519c4b789ac9c2e%40%3Cdev.tomcat.apache.org%3E	Mailing List
https://lists.apache.org/thread.html/8dcaf7c3894d66cb717646ea1504ea6e300021c85bb4e677dc16b1aa%40%3Cdev.tomcat.apache.org%3E	Mailing List
https://lists.apache.org/thread.html/r3aacc40356defc3f248aa504b1e48e819dd0471a0a83349080c6bcbf%40%3Cdev.tomcat.apache.org%3E	Mailing List
https://lists.apache.org/thread.html/r584a714f141eff7b1c358d4679288177bd4ca4558e9999d15867d4b5%40%3Cdev.tomcat.apache.org%3E	Mailing List
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A14573	Signature
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A19514	Signature

URL	Date	SRC

URL	Date	SRC
http://svn.apache.org/viewvc?view=revision&revision=1145383	2023-02-13
http://svn.apache.org/viewvc?view=revision&revision=1145571	2023-02-13
http://svn.apache.org/viewvc?view=revision&revision=1145694	2023-02-13
http://svn.apache.org/viewvc?view=revision&revision=1146005	2023-02-13
https://bugzilla.redhat.com/show_bug.cgi?id=720948	2012-05-21

URL	Date	SRC
http://marc.info/?l=bugtraq&m=132215163318824&w=2	2023-02-13
http://marc.info/?l=bugtraq&m=133469267822771&w=2	2023-02-13
http://marc.info/?l=bugtraq&m=136485229118404&w=2	2023-02-13
http://marc.info/?l=bugtraq&m=139344343412337&w=2	2023-02-13
http://rhn.redhat.com/errata/RHSA-2012-0074.html	2023-02-13
http://rhn.redhat.com/errata/RHSA-2012-0075.html	2023-02-13
http://rhn.redhat.com/errata/RHSA-2012-0076.html	2023-02-13
http://rhn.redhat.com/errata/RHSA-2012-0077.html	2023-02-13
http://rhn.redhat.com/errata/RHSA-2012-0078.html	2023-02-13
http://rhn.redhat.com/errata/RHSA-2012-0325.html	2023-02-13
http://www.debian.org/security/2012/dsa-2401	2023-02-13
http://www.mandriva.com/security/advisories?name=MDVSA-2011:156	2023-02-13
https://access.redhat.com/security/cve/CVE-2011-2526	2012-05-21

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				5.5.0 Search vendor "Apache" for product "Tomcat" and version "5.5.0"		-		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				5.5.1 Search vendor "Apache" for product "Tomcat" and version "5.5.1"		-		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				5.5.2 Search vendor "Apache" for product "Tomcat" and version "5.5.2"		-		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				5.5.3 Search vendor "Apache" for product "Tomcat" and version "5.5.3"		-		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				5.5.4 Search vendor "Apache" for product "Tomcat" and version "5.5.4"		-		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				5.5.5 Search vendor "Apache" for product "Tomcat" and version "5.5.5"		-		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				5.5.6 Search vendor "Apache" for product "Tomcat" and version "5.5.6"		-		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				5.5.7 Search vendor "Apache" for product "Tomcat" and version "5.5.7"		-		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				5.5.8 Search vendor "Apache" for product "Tomcat" and version "5.5.8"		-		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				5.5.9 Search vendor "Apache" for product "Tomcat" and version "5.5.9"		-		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				5.5.10 Search vendor "Apache" for product "Tomcat" and version "5.5.10"		-		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				5.5.11 Search vendor "Apache" for product "Tomcat" and version "5.5.11"		-		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				5.5.12 Search vendor "Apache" for product "Tomcat" and version "5.5.12"		-		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				5.5.13 Search vendor "Apache" for product "Tomcat" and version "5.5.13"		-		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				5.5.14 Search vendor "Apache" for product "Tomcat" and version "5.5.14"		-		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				5.5.15 Search vendor "Apache" for product "Tomcat" and version "5.5.15"		-		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				5.5.16 Search vendor "Apache" for product "Tomcat" and version "5.5.16"		-		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				5.5.17 Search vendor "Apache" for product "Tomcat" and version "5.5.17"		-		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				5.5.18 Search vendor "Apache" for product "Tomcat" and version "5.5.18"		-		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				5.5.19 Search vendor "Apache" for product "Tomcat" and version "5.5.19"		-		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				5.5.20 Search vendor "Apache" for product "Tomcat" and version "5.5.20"		-		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				5.5.21 Search vendor "Apache" for product "Tomcat" and version "5.5.21"		-		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				5.5.22 Search vendor "Apache" for product "Tomcat" and version "5.5.22"		-		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				5.5.23 Search vendor "Apache" for product "Tomcat" and version "5.5.23"		-		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				5.5.24 Search vendor "Apache" for product "Tomcat" and version "5.5.24"		-		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				5.5.25 Search vendor "Apache" for product "Tomcat" and version "5.5.25"		-		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				5.5.26 Search vendor "Apache" for product "Tomcat" and version "5.5.26"		-		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				5.5.27 Search vendor "Apache" for product "Tomcat" and version "5.5.27"		-		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				5.5.28 Search vendor "Apache" for product "Tomcat" and version "5.5.28"		-		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				5.5.29 Search vendor "Apache" for product "Tomcat" and version "5.5.29"		-		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				5.5.30 Search vendor "Apache" for product "Tomcat" and version "5.5.30"		-		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				5.5.31 Search vendor "Apache" for product "Tomcat" and version "5.5.31"		-		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				5.5.32 Search vendor "Apache" for product "Tomcat" and version "5.5.32"		-		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				5.5.33 Search vendor "Apache" for product "Tomcat" and version "5.5.33"		-		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				6.0 Search vendor "Apache" for product "Tomcat" and version "6.0"		-		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				6.0.0 Search vendor "Apache" for product "Tomcat" and version "6.0.0"		-		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				6.0.1 Search vendor "Apache" for product "Tomcat" and version "6.0.1"		-		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				6.0.2 Search vendor "Apache" for product "Tomcat" and version "6.0.2"		-		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				6.0.3 Search vendor "Apache" for product "Tomcat" and version "6.0.3"		-		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				6.0.4 Search vendor "Apache" for product "Tomcat" and version "6.0.4"		-		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				6.0.5 Search vendor "Apache" for product "Tomcat" and version "6.0.5"		-		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				6.0.6 Search vendor "Apache" for product "Tomcat" and version "6.0.6"		-		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				6.0.7 Search vendor "Apache" for product "Tomcat" and version "6.0.7"		-		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				6.0.8 Search vendor "Apache" for product "Tomcat" and version "6.0.8"		-		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				6.0.9 Search vendor "Apache" for product "Tomcat" and version "6.0.9"		-		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				6.0.10 Search vendor "Apache" for product "Tomcat" and version "6.0.10"		-		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				6.0.11 Search vendor "Apache" for product "Tomcat" and version "6.0.11"		-		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				6.0.12 Search vendor "Apache" for product "Tomcat" and version "6.0.12"		-		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				6.0.13 Search vendor "Apache" for product "Tomcat" and version "6.0.13"		-		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				6.0.14 Search vendor "Apache" for product "Tomcat" and version "6.0.14"		-		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				6.0.15 Search vendor "Apache" for product "Tomcat" and version "6.0.15"		-		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				6.0.16 Search vendor "Apache" for product "Tomcat" and version "6.0.16"		-		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				6.0.17 Search vendor "Apache" for product "Tomcat" and version "6.0.17"		-		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				6.0.18 Search vendor "Apache" for product "Tomcat" and version "6.0.18"		-		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				6.0.19 Search vendor "Apache" for product "Tomcat" and version "6.0.19"		-		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				6.0.20 Search vendor "Apache" for product "Tomcat" and version "6.0.20"		-		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				6.0.24 Search vendor "Apache" for product "Tomcat" and version "6.0.24"		-		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				6.0.26 Search vendor "Apache" for product "Tomcat" and version "6.0.26"		-		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				6.0.27 Search vendor "Apache" for product "Tomcat" and version "6.0.27"		-		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				6.0.28 Search vendor "Apache" for product "Tomcat" and version "6.0.28"		-		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				6.0.29 Search vendor "Apache" for product "Tomcat" and version "6.0.29"		-		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				6.0.30 Search vendor "Apache" for product "Tomcat" and version "6.0.30"		-		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				6.0.31 Search vendor "Apache" for product "Tomcat" and version "6.0.31"		-		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				6.0.32 Search vendor "Apache" for product "Tomcat" and version "6.0.32"		-		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				7.0.0 Search vendor "Apache" for product "Tomcat" and version "7.0.0"		-		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				7.0.0 Search vendor "Apache" for product "Tomcat" and version "7.0.0"		beta		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				7.0.1 Search vendor "Apache" for product "Tomcat" and version "7.0.1"		-		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				7.0.2 Search vendor "Apache" for product "Tomcat" and version "7.0.2"		-		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				7.0.3 Search vendor "Apache" for product "Tomcat" and version "7.0.3"		-		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				7.0.4 Search vendor "Apache" for product "Tomcat" and version "7.0.4"		-		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				7.0.5 Search vendor "Apache" for product "Tomcat" and version "7.0.5"		-		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				7.0.6 Search vendor "Apache" for product "Tomcat" and version "7.0.6"		-		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				7.0.7 Search vendor "Apache" for product "Tomcat" and version "7.0.7"		-		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				7.0.8 Search vendor "Apache" for product "Tomcat" and version "7.0.8"		-		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				7.0.9 Search vendor "Apache" for product "Tomcat" and version "7.0.9"		-		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				7.0.10 Search vendor "Apache" for product "Tomcat" and version "7.0.10"		-		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				7.0.11 Search vendor "Apache" for product "Tomcat" and version "7.0.11"		-		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				7.0.12 Search vendor "Apache" for product "Tomcat" and version "7.0.12"		-		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				7.0.14 Search vendor "Apache" for product "Tomcat" and version "7.0.14"		-		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				7.0.17 Search vendor "Apache" for product "Tomcat" and version "7.0.17"		-		Affected