Medium severity · published May 5, 2016
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…
6.8
CVSS
6.8%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
Attack vector
Network
Complexity
High
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)6.8% · higher than 94% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SU
Subversion · Apache
through 1.8.15; 1.9.0; 1.9.1; 1.9.2; 1.9.3 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2016-2167
CVE.org
https://www.cve.org/CVERecord?id=CVE-2016-2167
lists.fedoraproject.org
http://lists.fedoraproject.org/pipermail/package-announce/2016-May/184545.html
lists.opensuse.org
http://lists.opensuse.org/opensuse-updates/2016-05/msg00043.html
lists.opensuse.org
http://lists.opensuse.org/opensuse-updates/2016-05/msg00044.html
mail-archives.apache.org
http://mail-archives.apache.org/mod_mbox/subversion-announce/201604.mbox/%3CCAP_GPNgJet+7_MAhomFVOXPgLtewcUw9w=k9zdPCkq5tvPxVMA%40mail.gmail.com%3E
mail-archives.apache.org
http://mail-archives.apache.org/mod_mbox/subversion-announce/201604.mbox/%3CCAP_GPNgfn1iKueW51EpmXzXi_URNfGNofZSgOyW1_jnSeNm5DQ%40mail.gmail.com%3E
Vendor Advisory
http://subversion.apache.org/security/CVE-2016-2167-advisory.txt
More from Subversion
9.8
CVE-2017-9800
A maliciously constructed svn+ssh:// URL would cause Subversion clients before 1.8.19, 1.9.x before 1.9.7, and 1.10.0.x through 1.10.0-alpha3 to run an arbitrary shell command
8.8
CVE-2013-4246
libsvn_fs_fs/fs_fs.c in Apache Subversion 1.8.x before 1.8.2 might allow remote authenticated users with commit access to corrupt FSFS repositories and cause a denial of service…
8.6
CVE-2015-5259
Integer overflow in the read_string function in libsvn_ra_svn/marshal.c in Apache Subversion 1.9.x before 1.9.3 allows remote attackers to execute arbitrary code via an svn://…
7.8
CVE-2024-45720
On Windows platforms, a "best fit" character encoding conversion of command line arguments to Subversion's executables (e.g., svn.exe, etc.) may lead to unexpected command line…
7.6
CVE-2015-5343
Integer overflow in util.c in mod_dav_svn in Apache Subversion 1.7.x, 1.8.x before 1.8.15, and 1.9.x before 1.9.3 allows remote authenticated users to cause a denial of service…