PT-2018-13547 · Twistlock · Twistlock Authz Broker

Liron-L · Published 2018-09-03 · Updated 2019-10-03 · CVE-2018-16398

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Twistlock AuthZ Broker version 0.1

Description The issue concerns the mishandling of regular expressions, which can be exploited to bypass policies. For example, the API endpoint "containers/aa/pause?aaa=/start" can be used to bypass a policy where "docker start" is allowed but "docker pause" is not.

Recommendations For Twistlock AuthZ Broker version 0.1, as a temporary workaround, consider restricting access to the containers/aa/pause endpoint to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Related Identifiers

CVE-2018-16398

Affected Products

Twistlock Authz Broker

References · 4

• https://github.com/twistlock/authz/issues/50 · Patch
• https://github.com/twistlock/authz/issues/51 · Patch
• https://osv.dev/vulnerability/CVE-2018-16398 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2018-16398 · Security Note