CVE-2021-29431 – matrix-sydent

Package

Manager: pip
Name: matrix-sydent
Vulnerable Version: >=0 <2.3.0

Severity

Level: Medium

CVSS v3.1: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:N/SA:N

EPSS: 0.00303 pctl0.53055

Details

SSRF in Sydent due to missing validation of hostnames ### Impact Sydent can be induced to send HTTP GET requests to internal systems, due to lack of parameter validation or IP address blacklisting. It is not possible to exfiltrate data or control request headers, but it might be possible to use the attack to perform an internal port enumeration. ### Patches Fixed in 9e57334, 8936925, 3d531ed, 0f00412 ### Workarounds A potential workaround would be to use a firewall to ensure that Sydent cannot reach internal HTTP resources. ### For more information If you have any questions or comments about this advisory, email us at security@matrix.org.

Metadata

Created: 2021-04-19T14:54:15Z
Modified: 2024-09-30T20:40:49Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2021/04/GHSA-9jhm-8m8c-c3f4/GHSA-9jhm-8m8c-c3f4.json
CWE IDs: ["CWE-20", "CWE-918"]
Alternative ID: GHSA-9jhm-8m8c-c3f4
Finding: F100
Auto approve: 1