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

0.0
medium

Snyk CVSS

    Attack Complexity High
    Confidentiality High

    Threat Intelligence

    EPSS 0.18% (55th percentile)
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NVD
5.9 medium
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SUSE
5.8 medium
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Red Hat
5.9 medium

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  • Snyk ID SNYK-AMZN201803-CURL-5441335
  • published 21 Apr 2023
  • disclosed 30 Mar 2023
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Introduced: 30 Mar 2023

CVE-2023-27536 Open this link in a new tab
CWE-305 Open this link 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.