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configobj ReDoS exploitable by developer using values in a server-side configuration file

Low severity GitHub Reviewed Published Apr 3, 2023 to the GitHub Advisory Database • Updated Nov 12, 2023

Package

pip configobj (pip)

Affected versions

<= 5.0.8

Patched versions

None

Description

All versions of the package configobj are vulnerable to Regular Expression Denial of Service (ReDoS) via the validate function, using (.+?)((.*)). Note: This is only exploitable in the case of a developer, putting the offending value in a server side configuration file.

References

Published by the National Vulnerability Database Apr 3, 2023
Published to the GitHub Advisory Database Apr 3, 2023
Reviewed Apr 4, 2023
Last updated Nov 12, 2023

Severity

Low

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
High
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
Low

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L

EPSS score

0.137%
(50th percentile)

Weaknesses

CVE ID

CVE-2023-26112

GHSA ID

GHSA-c33w-24p9-8m24

Source code

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