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Server-Side Request Forgery in gogs webhook

High severity GitHub Reviewed Published May 31, 2022 in gogs/gogs • Updated Feb 1, 2023

Package

gomod gogs.io/gogs (Go)

Affected versions

< 0.12.8

Patched versions

0.12.8

Description

Impact

The malicious user is able to discover services in the internal network through webhook functionality. All installations accepting public traffic are affected.

Patches

Webhook payload URLs are revalidated before each delivery to make sure they are not resolved to blocked local network addresses. Users should upgrade to 0.12.8 or the latest 0.13.0+dev.

Workarounds

Run Gogs in its own private network.

References

https://huntr.dev/bounties/da1fbd6e-7a02-458e-9c2e-6d226c47046d/

For more information

If you have any questions or comments about this advisory, please post on gogs/gogs#6901.

References

@unknwon unknwon published to gogs/gogs May 31, 2022
Published by the National Vulnerability Database Jun 1, 2022
Published to the GitHub Advisory Database Jun 3, 2022
Reviewed Jun 3, 2022
Last updated Feb 1, 2023

Severity

High

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
None
Scope
Changed
Confidentiality
Low
Integrity
Low
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:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L

EPSS score

0.145%
(51st percentile)

Weaknesses

CVE ID

CVE-2022-1285

GHSA ID

GHSA-w689-557m-2cvq

Source code

Credits

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