CVE-2016-2167

6.8 MEDIUM
Published: May 05, 2016 Modified: May 06, 2026
View on NVD

Description

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.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
http://lists.fedoraproject.org/pipermail/package-announce/2016-May/184545.html
Source: secalert@redhat.com
http://lists.opensuse.org/opensuse-updates/2016-05/msg00043.html
Source: secalert@redhat.com
http://lists.opensuse.org/opensuse-updates/2016-05/msg00044.html
Source: secalert@redhat.com
http://mail-archives.apache.org/mod_mbox/subversion-announce/201604.mbox/%3CCAP_GPNgJet+7_MAhomFVOXPgLtewcUw9w=k9zdPCkq5tvPxVMA%40mail.gmail.com%3E
Source: secalert@redhat.com
http://mail-archives.apache.org/mod_mbox/subversion-announce/201604.mbox/%3CCAP_GPNgfn1iKueW51EpmXzXi_URNfGNofZSgOyW1_jnSeNm5DQ%40mail.gmail.com%3E
Source: secalert@redhat.com
http://subversion.apache.org/security/CVE-2016-2167-advisory.txt
Source: secalert@redhat.com
Vendor Advisory
http://www.debian.org/security/2016/dsa-3561
Source: secalert@redhat.com
http://www.securityfocus.com/bid/89417
Source: secalert@redhat.com
http://www.securitytracker.com/id/1035706
Source: secalert@redhat.com
http://www.slackware.com/security/viewer.php?l=slackware-security&y=2016&m=slackware-security.417496
Source: secalert@redhat.com
https://security.gentoo.org/glsa/201610-05
Source: secalert@redhat.com
https://www.oracle.com/security-alerts/cpuoct2020.html
Source: secalert@redhat.com
http://lists.fedoraproject.org/pipermail/package-announce/2016-May/184545.html
Source: af854a3a-2127-422b-91ae-364da2661108
http://lists.opensuse.org/opensuse-updates/2016-05/msg00043.html
Source: af854a3a-2127-422b-91ae-364da2661108
http://lists.opensuse.org/opensuse-updates/2016-05/msg00044.html
Source: af854a3a-2127-422b-91ae-364da2661108
http://mail-archives.apache.org/mod_mbox/subversion-announce/201604.mbox/%3CCAP_GPNgJet+7_MAhomFVOXPgLtewcUw9w=k9zdPCkq5tvPxVMA%40mail.gmail.com%3E
Source: af854a3a-2127-422b-91ae-364da2661108
http://mail-archives.apache.org/mod_mbox/subversion-announce/201604.mbox/%3CCAP_GPNgfn1iKueW51EpmXzXi_URNfGNofZSgOyW1_jnSeNm5DQ%40mail.gmail.com%3E
Source: af854a3a-2127-422b-91ae-364da2661108
http://subversion.apache.org/security/CVE-2016-2167-advisory.txt
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
http://www.debian.org/security/2016/dsa-3561
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.securityfocus.com/bid/89417
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.securitytracker.com/id/1035706
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.slackware.com/security/viewer.php?l=slackware-security&y=2016&m=slackware-security.417496
Source: af854a3a-2127-422b-91ae-364da2661108
https://security.gentoo.org/glsa/201610-05
Source: af854a3a-2127-422b-91ae-364da2661108
https://www.oracle.com/security-alerts/cpuoct2020.html
Source: af854a3a-2127-422b-91ae-364da2661108

24 reference(s) from NVD

Quick Stats

CVSS v3 Score
6.8 / 10.0
EPSS (Exploit Probability)
1.0%
77th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

CWE-284

Affected Vendors

apache

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