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CVE-2020-5283

XSS vulnerability in CVS show_subdir_lastmod support

Published: Apr 3, 2020Updated: Nov 21, 2024 Sources: CVE List NVDCWE-80
NVD MITRE
3.1CVSSLOW
EPSS Score
1.2%
Top 35.4%
CISA KEV
Not in KEV
Exploits
1 Known
Remediation
Patch Available

Description

ViewVC before versions 1.1.28 and 1.2.1 has a XSS vulnerability in CVS show_subdir_lastmod support. The impact of this vulnerability is mitigated by the need for an attacker to have commit privileges to a CVS repository exposed by an otherwise trusted ViewVC instance that also has the `show_subdir_lastmod` feature enabled. The attack vector involves files with unsafe names (names that, when embedded into an HTML stream, would cause the browser to run unwanted code), which themselves can be challenging to create. This vulnerability is patched in versions 1.2.1 and 1.1.28.

CVSS Vector Breakdown

AV:NAC:HPR:HUI:RS:UC:LI:LA:N
Exploitability
AV:NAttack Vector
Network
AC:HAttack Complexity
High
PR:HPrivileges Required
High
UI:RUser Interaction
Required
Scope
S:UScope
Unchanged
Impact
C:LConfidentiality
Low
I:LIntegrity
Low
A:NAvailability
None
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Weaknesses

CWE-80CWE-79

Affected Products

viewvcviewvc
On-prem
DevTools & CI / source-control
viewvcoss-projectDevTools & CIaka viewvc

Attack Graph

Products CVE Techniques Tactics

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Exploitability

1 exploit source identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
Official Patch Available
Workaround Available

MITRE ATT&CK

2 techniques
Execution
Initial Access
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References

https://github.com/viewvc/viewvc/security/advisories/GHSA-xpxf-fvqv-7mfg
github.com
https://github.com/viewvc/viewvc/issues/211
github.com
https://github.com/viewvc/viewvc/commit/ad0f966e9a997b17d853a6972ea283d4dcd70fa8
github.com
and 1 more references View all →

Timeline

Published
Apr 3, 2020
Last Updated
Nov 21, 2024

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