Authentication Bypass by Primary Weakness Affecting libcurl package, versions <0:8.0.1-1.amzn2.0.1
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Test your applications- Snyk ID SNYK-AMZN2-LIBCURL-5671995
- published 8 Jun 2023
- disclosed 30 Mar 2023
Introduced: 30 Mar 2023
CVE-2023-27536 Open this link in a new tabHow to fix?
Upgrade Amazon-Linux:2 libcurl to version 0:8.0.1-1.amzn2.0.1 or higher.
This issue was patched in ALAS2-2023-2070.
NVD Description
Note: Versions mentioned in the description apply only to the upstream libcurl package and not the libcurl package as distributed by Amazon-Linux.
See How to fix? for Amazon-Linux:2 relevant fixed versions and status.
An authentication bypass vulnerability exists libcurl <8.0.0 in the connection reuse feature which can reuse previously established connections with incorrect user permissions due to a failure to check for changes in the CURLOPT_GSSAPI_DELEGATION option. This vulnerability affects krb5/kerberos/negotiate/GSSAPI transfers and could potentially result in unauthorized access to sensitive information. The safest option is to not reuse connections if the CURLOPT_GSSAPI_DELEGATION option has been changed.
References
- http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-27536
- https://hackerone.com/reports/1895135
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/36NBD5YLJXXEDZLDGNFCERWRYJQ6LAQW/
- https://lists.debian.org/debian-lts-announce/2023/04/msg00025.html
- https://security.netapp.com/advisory/ntap-20230420-0010/
- https://security.gentoo.org/glsa/202310-12
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/36NBD5YLJXXEDZLDGNFCERWRYJQ6LAQW/