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Report receiver server v0.18.0 is vulnerable to path traversal and log injection

High
targodan published GHSA-9h6h-9g78-86f7 Dec 23, 2022

Package

gomod github.com/fkie-cad/yapscan (Go)

Affected versions

v0.18.0

Patched versions

v0.19.1

Description

Impact

If you make use of the report receiver server (experimental), a client may be able to forge requests such that arbitrary files on the host can be overwritten (subject to permissions of the yapscan server), leading to loss of data. This is particularly problematic if you do not authenticate clients and/or run the server with elevated permissions.

Patches

Vulnerable versions:

  • v0.18.0
  • v0.19.0 (unreleased)

This problem is patched in version v0.19.1

Workarounds

Update to the newer version is highly encouraged!

Measures to reduce the risk of this include authenticating clients (see --client-ca flag) and containerization of the yapscan server.

References

The tracking issue is #35. There you can find the commits, fixing the issue.

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
Unchanged
Confidentiality
None
Integrity
High
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:N/S:U/C:N/I:H/A:N

CVE ID

No known CVE

Weaknesses