GHSA-6q5r-wx7g-rq28

GHSA-6q5r-wx7g-rq28 PUBLISHED CVSS 5.400000095367432 MEDIUM

Record from GitHub Advisory Database · Published May 24, 2022

All Samba versions 4.x.x before 4.9.17, 4.10.x before 4.10.11 and 4.11.x before 4.11.3 have an issue, where the S4U (MS-SFU) Kerberos delegation model includes a feature allowing for a subset of clients to be opted out of constrained delegation in any way, either S4U2Self or regular Kerberos authentication, by forcing all tickets for these clients to be non-forwardable. In AD this is implemented by a user attribute delegation_not_allowed (aka not-delegated), which translates to disallow-forwardable. However the Samba AD DC does not do that for S4U2Self and does set the forwardable flag even if the impersonated client has the not-delegated flag set.

Risk scores

CVSS 3.1

5.400000095367432

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

Timeline

May 24, 2022 CVE Published
Apr 9, 2026 Security Advisory

Query this with the API

The same record, from the CLI:

vulnetix vdb vuln GHSA-6q5r-wx7g-rq28
vulnetix vdb fixes GHSA-6q5r-wx7g-rq28

Or with curl, using the org id and key from your account page:

curl -s -H "Authorization: ApiKey ${VULNETIX_ORG_ID}:${VULNETIX_API_KEY}" \
  "https://api.vdb.vulnetix.com/v2/vuln/GHSA-6q5r-wx7g-rq28/fixes/registry"

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