Download
Beveilingsadvies; NCSC-2024-0234 [1.0.0]
- Beveiligingsadvies
- NCSC-2024-0234 [1.0.0]
- Publicatie
- 23-05-2024 12:57 (Europe/Amsterdam)
- Prioriteit
- Normaal
- Betreft
- Kwetsbaarheid verholpen in Github Enterprise Server
Kenmerken
- Incorrect Implementation of Authentication Algorithm
Omschrijving
Github heeft een kwetsbaarheid verholpen in Github Enterprise Server.
Een kwaadwillende kan de kwetsbaarheid misbruiken om toegang te krijgen tot de Github-omgeving, mogelijk zelfs als administrator.
De kwetsbaarheid bevindt zich in de wijze waarop Github SAML-Single-Sign-on verwerkt. Wanneer gebruik wordt gemaakt van de optionele 'Security Assertions' kan de kwaadwillende zonder voorafgaande authenticatie toegang krijgen tot willekeurige accounts, waaronder die van beheerders.
SAML-SSO is standaard niet in gebruik. 'Security Assertions' zijn optioneel en standaard niet geconfigureerd. Bij reguliere installaties, die beide configuratie-opties niet in gebruik hebben, is misbruik niet mogelijk.
Oplossingen
Github heeft updates beschikbaar gesteld om de kwetsbaarheid te verhelpen. Zie bijgevoegde referenties voor meer informatie:
https://docs.github.com/en/enterprise-server@3.10/admin/release-notes#3.10.12
https://docs.github.com/en/enterprise-server@3.11/admin/release-notes#3.11.10
https://docs.github.com/en/enterprise-server@3.12/admin/release-notes#3.12.4
https://docs.github.com/en/enterprise-server@3.9/admin/release-notes#3.9.15
Referenties
- https://docs.github.com/en/enterprise-server@3.10/admin/release-notes#3.10.12
- https://docs.github.com/en/enterprise-server@3.11/admin/release-notes#3.11.10
- https://docs.github.com/en/enterprise-server@3.12/admin/release-notes#3.12.4
- https://docs.github.com/en/enterprise-server@3.9/admin/release-notes#3.9.15
CVE's
Disclaimer
The Netherlands Cyber Security Center (henceforth: NCSC-NL) maintains this page to enhance access to its information and security advisories. The use of this security advisory is subject to the following terms and conditions: NCSC-NL makes every reasonable effort to ensure that the content of this page is kept up to date, and that it is accurate and complete. Nevertheless, NCSC-NL cannot entirely rule out the possibility of errors, and therefore cannot give any warranty in respect of its completeness, accuracy or continuous keeping up-to-date. The information contained in this security advisory is intended solely for the purpose of providing general information to professional users. No rights can be derived from the information provided therein. NCSC-NL and the Kingdom of the Netherlands assume no legal liability or responsibility for any damage resulting from either the use or inability of use of this security advisory. This includes damage resulting from the inaccuracy of incompleteness of the information contained in the advisory. This security advisory is subject to Dutch law. All disputes related to or arising from the use of this advisory will be submitted to the competent court in The Hague. This choice of means also applies to the court in summary proceedings.