CVE-2016-2167

Severity Score

6.8

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The canonicalize_username function in svnserve/cyrus_auth.c in Apache Subversion before 1.8.16 and 1.9.x before 1.9.4, when Cyrus SASL authentication is used, allows remote attackers to authenticate and bypass intended access restrictions via a realm string that is a prefix of an expected repository realm string.

La función canonicalize_username en svnserve/cyrus_auth.c en Apache Subversion en versiones anteriores a 1.8.16 y 1.9.x en versiones anteriores a 1.9.4, cuando se utiliza autenticación Cyrus SASL, permite a atacantes remotos autenticarse y eludir restricciones destinadas al acceso a través de una cadena realm que se prefija a un repositorio de cadena realm esperado.

*Credits: N/A

Attack Vector

Network

Attack Complexity

High

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

None

Attack Vector

Network

Attack Complexity

Medium

Authentication

Single

Confidentiality

Partial

Integrity

Partial

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2016-01-29 CVE Reserved
2016-04-29 CVE Published
2023-03-07 EPSS Updated
2024-08-05 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-284: Improper Access Control

CAPEC

References (12)

URL	Tag	Source
http://mail-archives.apache.org/mod_mbox/subversion-announce/201604.mbox/%3CCAP_GPNgJet+7_MAhomFVOXPgLtewcUw9w=k9zdPCkq5tvPxVMA%40mail.gmail.com%3E	Mailing List
http://mail-archives.apache.org/mod_mbox/subversion-announce/201604.mbox/%3CCAP_GPNgfn1iKueW51EpmXzXi_URNfGNofZSgOyW1_jnSeNm5DQ%40mail.gmail.com%3E	Mailing List
http://www.securityfocus.com/bid/89417	Vdb Entry
http://www.securitytracker.com/id/1035706	Vdb Entry
https://www.oracle.com/security-alerts/cpuoct2020.html	X_refsource_misc

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
http://lists.fedoraproject.org/pipermail/package-announce/2016-May/184545.html	2023-11-07
http://lists.opensuse.org/opensuse-updates/2016-05/msg00043.html	2023-11-07
http://lists.opensuse.org/opensuse-updates/2016-05/msg00044.html	2023-11-07
http://subversion.apache.org/security/CVE-2016-2167-advisory.txt	2023-11-07
http://www.debian.org/security/2016/dsa-3561	2023-11-07
http://www.slackware.com/security/viewer.php?l=slackware-security&y=2016&m=slackware-security.417496	2023-11-07
https://security.gentoo.org/glsa/201610-05	2023-11-07

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Apache Search vendor "Apache"		Subversion Search vendor "Apache" for product "Subversion"				<= 1.8.15 Search vendor "Apache" for product "Subversion" and version " <= 1.8.15"		-		Affected
Apache Search vendor "Apache"		Subversion Search vendor "Apache" for product "Subversion"				1.9.0 Search vendor "Apache" for product "Subversion" and version "1.9.0"		-		Affected
Apache Search vendor "Apache"		Subversion Search vendor "Apache" for product "Subversion"				1.9.1 Search vendor "Apache" for product "Subversion" and version "1.9.1"		-		Affected
Apache Search vendor "Apache"		Subversion Search vendor "Apache" for product "Subversion"				1.9.2 Search vendor "Apache" for product "Subversion" and version "1.9.2"		-		Affected
Apache Search vendor "Apache"		Subversion Search vendor "Apache" for product "Subversion"				1.9.3 Search vendor "Apache" for product "Subversion" and version "1.9.3"		-		Affected