Authentication Bypass by Primary Weakness Affecting curl package, versions <0:7.61.1-12.105.amzn1


Severity

Recommended
0.0
medium
0
10

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.33% (72nd percentile)

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  • Snyk IDSNYK-AMZN201803-CURL-5441335
  • published21 Apr 2023
  • disclosed30 Mar 2023

Introduced: 30 Mar 2023

CVE-2023-27536  (opens in a new tab)
CWE-305  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2018.03 curl to version 0:7.61.1-12.105.amzn1 or higher.
This issue was patched in ALAS-2023-1727.

NVD Description

Note: Versions mentioned in the description apply only to the upstream curl package and not the curl package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2018.03 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.

CVSS Scores

version 3.1