CVE-2020-11075 Information

Description

In Anchore Engine version 0.7.0 a specially crafted container image manifest fetched from a registry can be used to trigger a shell escape flaw in the anchore engine analyzer service during an image analysis process. The image analysis operation can only be executed by an authenticated user via a valid API request to anchore engine or if an already added image that anchore is monitoring has its manifest altered to exploit the same flaw. A successful attack can be used to execute commands that run in the analyzer environment with the same permissions as the user that anchore engine is run as - including access to the credentials that Engine uses to access its own database which have read-write ability as well as access to the running engien analyzer service environment. By default Anchore Engine is released and deployed as a container where the user is non-root but if users run Engine directly or explicitly set the user to ‘root’ then that level of access may be gained in the execution environment where Engine runs. This issue is fixed in version 0.7.1.

CVSS Vector

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

Reference

https://github.com/anchore/anchore-engine/commit/e41786901f097fd32104447a45864073105d37db https://github.com/anchore/anchore-engine/issues/430 https://github.com/anchore/anchore-engine/pull/431 https://github.com/anchore/anchore-engine/security/advisories/GHSA-w4rm-w22x-h7m5

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

CHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

9.9