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Mageia 7: 2020-0181 Moderate: Git Credential Exposure via Malicious URLs

mageia
Calendar Grey April 24, 2020
Dist Mageia Esm H88
Refreshed git libraries address a security flaw related to saved authentication details. Learn about the remediation measures.
Updated git packages fix security vulnerability: Malicious URLs can still cause Git to send a stored credential to the wrong server (CvE-2020-111008)

Summary

Updated git packages fix security vulnerability:
Malicious URLs can still cause Git to send a stored credential to the wrong server (CvE-2020-111008).
With a crafted URL that contains a newline or empty host, or lacks a scheme, the credential helper machinery can be fooled into providing credential information that is not appropriate for the protocol in use and host being contacted.
Unlike the vulnerability CVE-2020-5260 fixed in v2.17.4, the credentials are not for a host of the attacker's choosing; instead, they are for some unspecified host (based on how the configured credential helper handles an absent "host" parameter).
The attack has been made impossible by refusing to work with under-specified credential patterns.

References

- https://bugs.mageia.org/show_bug.cgi?id=26516

- https://www.openwall.com/lists/oss-security/2020/04/20/1

- https://github.com/git/git/security/advisories/GHSA-hjc9-x69f-jqj7

- https://www.cve.org/CVERecord?id=CVE-2020-11008

Resolution

SRPMS

- 7/core/git-2.21.3-1.mga7

Severity
important
Lowest
Low
Medium
High
Critical

Publication date: 24 Apr 2020
URL: https://advisories.mageia.org/MGASA-2020-0181.html
Type: security
CVE: CVE-2020-11008

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