High severity · published Mar 17, 2021
CVE-2020-17525
Subversion's mod_authz_svn module will crash if the server is using in-repository authz rules with the AuthzSVNReposRelativeAccessFile option and a client sends a request for a…
7.5
CVSS
40.1%
EPSS
No
On KEV
Description
Subversion's mod_authz_svn module will crash if the server is using in-repository authz rules with the AuthzSVNReposRelativeAccessFile option and a client sends a request for a non-existing repository URL. This can lead to disruption for users of the service. This issue was fixed in mod_dav_svn+mod_authz_svn servers 1.14.1 and mod_dav_svn+mod_authz_svn servers 1.10.7
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)40.1% · higher than 99% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DL
Debian Linux · Debian
9.0 · source: NVD
SU
Subversion · Apache
1.9.0 before 1.10.7; 1.11.0 before 1.14.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-17525
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-17525
Mailing List
https://lists.debian.org/debian-lts-announce/2021/05/msg00000.html
Exploit
https://subversion.apache.org/security/CVE-2020-17525-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…