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CVE-2020-17525

Remote unauthenticated denial-of-service in Subversion mod_authz_svn

Published: Mar 17, 2021Updated: Nov 21, 2024 Sources: CVE List NVD BDUCWE-476
7.5HIGH
NVD MITRE
EPSS Score
37.5%
Top 1.7%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:NA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-476

Affected Products

Debian GNU/LinuxСообщество свободного программного обеспечения
On-premOS
Operating Systems / linux-distro
РЕД ОСООО «Ред Софт»
On-premOS
Operating Systems / linux-distro
Astra Linux Special EditionООО «РусБИТех-Астра»
On-premOS
Operating Systems / linux-distro
SubversionApache Software Foundation
On-premLibrary
OSS Libraries
Альт 8 СПАО «ИВК»
On-premOS
Operating Systems / linux-distro
сообщество свободного программного обеспеченияoss-projectOperating Systemsaka сообщество свободного программного обеспечения, fsf
ооо «ред софт»commercialRUOperating Systemsaka red soft
ооо «русбитех-астра»commercialRUOperating Systemsaka rusbitech-astra
apache software foundationoss-projectUSWeb & CMS Pluginsaka apache foundation
ао «ивк»commercialRUOperating Systemsaka ivk
and 6 more affected products View all →

Exploitability

Official Patch Available
Workaround Available
No detection template yetWe can run the check for you — a free external exposure review, no install. Check my exposure

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

MITRE ATT&CK

2 techniques
Impact
Initial Access
View detailed technique mapping

References

https://nvd.nist.gov/vuln/detail/CVE-2020-17525
nvd.nist.gov
https://security-tracker.debian.org/tracker/CVE-2020-17525
security-tracker.debian.org
https://subversion.apache.org/security/CVE-2020-17525-advisory.txt
subversion.apache.org
and 9 more references View all →

Timeline

Published
Mar 17, 2021
Last Updated
Nov 21, 2024

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