National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2020-5283 Detail

Current 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.

Source:  MITRE
View Analysis Description

Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score: 3.5 LOW
Vector:  CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:L/A:N

Nist CVSS score does not match with CNA score
CNA:  GitHub, Inc.
Base Score: 3.1 LOW
Vector:  CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:L/I:L/A:N

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://github.com/viewvc/viewvc/commit/ad0f966e9a997b17d853a6972ea283d4dcd70fa8 Patch Third Party Advisory
https://github.com/viewvc/viewvc/issues/211 Exploit Issue Tracking Third Party Advisory
https://github.com/viewvc/viewvc/security/advisories/GHSA-xpxf-fvqv-7mfg Mitigation Patch Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/2Q2STF2MKT24HXZ3YZIU7CN6F6QM67I5/

Weakness Enumeration

CWE-ID CWE Name Source
CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') NIST  
CWE-80 Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) GitHub, Inc.  

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:a:viewvc:viewvc:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
Up to (excluding)
1.1.28
 cpe:2.3:a:viewvc:viewvc:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
From (including)
1.2.0
Up to (excluding)
1.2.1


Change History

3 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2020-5283
NVD Published Date:
04/02/2020
NVD Last Modified:
05/15/2020