CVE-2016-9775

Debian Security Advisory 3738-1

Severity Score

7.8

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The postrm script in the tomcat6 package before 6.0.45+dfsg-1~deb7u3 on Debian wheezy, before 6.0.45+dfsg-1~deb8u1 on Debian jessie, before 6.0.35-1ubuntu3.9 on Ubuntu 12.04 LTS and on Ubuntu 14.04 LTS; the tomcat7 package before 7.0.28-4+deb7u7 on Debian wheezy, before 7.0.56-3+deb8u6 on Debian jessie, before 7.0.52-1ubuntu0.8 on Ubuntu 14.04 LTS, and on Ubuntu 12.04 LTS, 16.04 LTS, and 16.10; and the tomcat8 package before 8.0.14-1+deb8u5 on Debian jessie, before 8.0.32-1ubuntu1.3 on Ubuntu 16.04 LTS, before 8.0.37-1ubuntu0.1 on Ubuntu 16.10, and before 8.0.38-2ubuntu1 on Ubuntu 17.04 might allow local users with access to the tomcat account to gain root privileges via a setgid program in the Catalina directory, as demonstrated by /etc/tomcat8/Catalina/attack.

El script postrm en el paquete tomcat6 en versiones anteriores a 6.0.45+dfsg-1~deb7u3 en Debian wheezy, en versiones anteriores a 6.0.45+dfsg-1~deb8u1 en Debian jessie, en versiones anteriores a 6.0.35-1ubuntu3.9 rn Ubuntu 12.04 LTS y en Ubuntu 14.04 LTS; el paquete tomcat7 en versiones anteriores a 7.0.28-4+deb7u7 en Debian wheezy, en versiones anteriores a 7.0.56-3+deb8u6 en Debian jessie, en versiones anteriores a 7.0.52-1ubuntu0.8 en Ubuntu 14.04 LTS, y en Ubuntu 12.04 LTS, 16.04 LTS y 16.10; y el paquete tomcat8 en versiones anteriores a 8.0.14-1+deb8u5 en Debian jessie, en versiones anteriores a 8.0.32-1ubuntu1.3 en Ubuntu 16.04 LTS, en versiones anteriores a 8.0.37-1ubuntu0.1 en Ubuntu 16.10 y en versiones anteriores a 8.0.38-2ubuntu1 en Ubuntu 17.04 podrían permitir a usuarios locales con acceso a la cuenta tomcat obtener privilegios root a través de un programa setgid en el directorio Catalina, como se demuestra por /etc/tomcat8/Catalina/attack

It was discovered that the Tomcat realm implementations incorrectly handled passwords when a username didn't exist. A remote attacker could possibly use this issue to enumerate usernames. This issue only applied to Ubuntu 12.04 LTS, Ubuntu 14.04 LTS and Ubuntu 16.04 LTS. Alvaro Munoz and Alexander Mirosh discovered that Tomcat incorrectly limited use of a certain utility method. A malicious application could possibly use this to bypass Security Manager restrictions. This issue only applied to Ubuntu 12.04 LTS, Ubuntu 14.04 LTS and Ubuntu 16.04 LTS. Various other issues were also addressed.

*Credits: N/A

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Local

Attack Complexity

Low

Authentication

None

Confidentiality

Complete

Integrity

Complete

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2016-12-02 CVE Reserved
2016-12-18 CVE Published
2024-08-06 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-264: Permissions, Privileges, and Access Controls

CAPEC

References (10)

URL	Tag	Source
http://www.openwall.com/lists/oss-security/2016/12/02/10	Mailing List
http://www.openwall.com/lists/oss-security/2016/12/02/5	Mailing List
http://www.securityfocus.com/bid/94643	Third Party Advisory
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=845385	Mailing List
https://security.netapp.com/advisory/ntap-20180731-0002	X_refsource_confirm
https://www.oracle.com/security-alerts/cpuApr2021.html	X_refsource_misc

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
http://www.debian.org/security/2016/dsa-3738	2021-06-14
http://www.debian.org/security/2016/dsa-3739	2021-06-14
http://www.ubuntu.com/usn/USN-3177-1	2021-06-14
http://www.ubuntu.com/usn/USN-3177-2	2021-06-14

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				7.0 Search vendor "Debian" for product "Debian Linux" and version "7.0"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				8.0 Search vendor "Debian" for product "Debian Linux" and version "8.0"		-		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				12.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "12.04"		lts		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				14.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "14.04"		lts		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				16.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "16.04"		lts		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				16.10 Search vendor "Canonical" for product "Ubuntu Linux" and version "16.10"		-		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"				7.0 Search vendor "Apache" for product "Tomcat" and version "7.0"		-		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				8.0 Search vendor "Apache" for product "Tomcat" and version "8.0"		-		Affected