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Authentication Bypass by Primary Weakness Affecting libcurl-minimal package, versions <0:7.61.1-30.el8_8.2

0.0
medium

Snyk CVSS

    Attack Complexity High
    Confidentiality High

    Threat Intelligence

    EPSS 0.12% (46th 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-CENTOS8-LIBCURLMINIMAL-3366944
  • published 21 Mar 2023
  • disclosed 20 Mar 2023
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Introduced: 20 Mar 2023

CVE-2023-27535 Open this link in a new tab
CWE-305 Open this link in a new tab

How to fix?

Upgrade Centos:8 libcurl-minimal to version 0:7.61.1-30.el8_8.2 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libcurl-minimal package and not the libcurl-minimal package as distributed by Centos. See How to fix? for Centos:8 relevant fixed versions and status.

An authentication bypass vulnerability exists in libcurl <8.0.0 in the FTP connection reuse feature that can result in wrong credentials being used during subsequent transfers. Previously created connections are kept in a connection pool for reuse if they match the current setup. However, certain FTP settings such as CURLOPT_FTP_ACCOUNT, CURLOPT_FTP_ALTERNATIVE_TO_USER, CURLOPT_FTP_SSL_CCC, and CURLOPT_USE_SSL were not included in the configuration match checks, causing them to match too easily. This could lead to libcurl using the wrong credentials when performing a transfer, potentially allowing unauthorized access to sensitive information.