[Security Advisory]: SSRF in symbolicator

[jeff-a-holland-codecov]

Package and Versions

Package: symbolicator Rust
Affected Version(s): >=0.3.3,<23.11.2
Patched Version(s): 23.11.2

Description

Symbolicator is a service used in Sentry. An attacker could make Symbolicator send GET HTTP requests to arbitrary URLs with internal IP addresses by using a specially crafted HTTP endpoint. The responses of those requests could be exposed via Symbolicator's API.

Impact

In affected Sentry instances, the data could be exposed through the Sentry API and user interface if the attacker has a registered account.

Patches

The issue has been fixed in Symbolicator release 23.11.2, Sentry self-hosted release 23.11.2, and has already been mitigated on sentry.io on November 27.

Workarounds

Please update Symbolicator and Sentry self-hosted. If updating is not possible, the following can be done to mitigate the issue:

Disable JS processing by toggling the option "Allow JavaScript Source Fetching" in Organization Settings > Security & Privacy.
Disable all untrusted public repositories under Project Settings > Debug Files.
Alternatively, if JavaScript and native symbolication are not required, disable Symbolicator completely in config.yml by specifying:

symbolicator.enabled: false

CVSS 3.1 Score and Vector

Example:
CVSS Score: 4.3
CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Information

Reference: getsentry/symbolicator#1332
Credit: https://github.com/oioki