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Twisted CRLF Injection

Moderate severity GitHub Reviewed Published Jun 10, 2019 to the GitHub Advisory Database • Updated Aug 31, 2023

Package

pip twisted (pip)

Affected versions

< 19.2.1

Patched versions

19.2.1

Description

In Twisted before 19.2.1, twisted.web did not validate or sanitize URIs or HTTP methods, allowing an attacker to inject invalid characters such as CRLF.

References

Published by the National Vulnerability Database Jun 10, 2019
Reviewed Jun 10, 2019
Published to the GitHub Advisory Database Jun 10, 2019
Last updated Aug 31, 2023

Severity

Moderate

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
Low
Privileges required
None
User interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

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:L/PR:N/UI:R/S:C/C:L/I:L/A:N

EPSS score

0.213%
(60th percentile)

Weaknesses

CVE ID

CVE-2019-12387

GHSA ID

GHSA-6cc5-2vg4-cc7m

Source code

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