Vulnerability Details : CVE-2016-2167
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.
Vulnerability category: BypassGain privilege
Products affected by CVE-2016-2167
- cpe:2.3:a:apache:subversion:*:*:*:*:*:*:*:*
- cpe:2.3:a:apache:subversion:1.9.2:*:*:*:*:*:*:*
- cpe:2.3:a:apache:subversion:1.9.1:*:*:*:*:*:*:*
- cpe:2.3:a:apache:subversion:1.9.0:*:*:*:*:*:*:*
- cpe:2.3:a:apache:subversion:1.9.3:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2016-2167
0.13%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 48 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2016-2167
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.9
|
MEDIUM | AV:N/AC:M/Au:S/C:P/I:P/A:N |
6.8
|
4.9
|
NIST | |
|
6.8
|
MEDIUM | CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N |
1.6
|
5.2
|
NIST |
CWE ids for CVE-2016-2167
-
The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.Assigned by: nvd@nist.gov (Primary)
References for CVE-2016-2167
-
https://www.oracle.com/security-alerts/cpuoct2020.html
Oracle Critical Patch Update Advisory - October 2020
-
http://www.securityfocus.com/bid/89417
Apache Subversion CVE-2016-2167 Authentication Bypass Vulnerability
-
http://www.securitytracker.com/id/1035706
Apache Subversion svnserve Flaw Lets Remote Authenticated Users Access Other Realms on the Target System - SecurityTracker
-
http://www.slackware.com/security/viewer.php?l=slackware-security&y=2016&m=slackware-security.417496
The Slackware Linux Project: Slackware Security Advisories
-
http://lists.opensuse.org/opensuse-updates/2016-05/msg00043.html
openSUSE-SU-2016:1263-1: moderate: Security update for subversion
-
http://www.debian.org/security/2016/dsa-3561
Debian -- Security Information -- DSA-3561-1 subversion
-
http://lists.fedoraproject.org/pipermail/package-announce/2016-May/184545.html
[SECURITY] Fedora 24 Update: subversion-1.9.4-1.fc24
-
http://mail-archives.apache.org/mod_mbox/subversion-announce/201604.mbox/%3CCAP_GPNgfn1iKueW51EpmXzXi_URNfGNofZSgOyW1_jnSeNm5DQ@mail.gmail.com%3E
[ANNOUNCE][SECURITY] Apache Subversion 1.9.4 released
-
https://security.gentoo.org/glsa/201610-05
Subversion, Serf: Multiple Vulnerabilities (GLSA 201610-05) — Gentoo security
-
http://subversion.apache.org/security/CVE-2016-2167-advisory.txt
Vendor Advisory
-
http://lists.opensuse.org/opensuse-updates/2016-05/msg00044.html
openSUSE-SU-2016:1264-1: moderate: Security update for subversion
-
http://mail-archives.apache.org/mod_mbox/subversion-announce/201604.mbox/%3CCAP_GPNgJet+7_MAhomFVOXPgLtewcUw9w=k9zdPCkq5tvPxVMA@mail.gmail.com%3E
[ANNOUNCE][SECURITY] Apache Subversion 1.8.16 released
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