Rapid7 Vulnerability & Exploit Database

CentOS Linux: CVE-2023-27535: Moderate: curl security update (Multiple Advisories)

Free InsightVM Trial No Credit Card Necessary
2024 Attack Intel Report Latest research by Rapid7 Labs
Back to Search

CentOS Linux: CVE-2023-27535: Moderate: curl security update (Multiple Advisories)

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
03/30/2023
Created
05/15/2023
Added
05/15/2023
Modified
07/04/2023

Description

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.

Solution(s)

  • centos-upgrade-curl
  • centos-upgrade-curl-debuginfo
  • centos-upgrade-curl-debugsource
  • centos-upgrade-curl-minimal
  • centos-upgrade-curl-minimal-debuginfo
  • centos-upgrade-libcurl
  • centos-upgrade-libcurl-debuginfo
  • centos-upgrade-libcurl-devel
  • centos-upgrade-libcurl-minimal
  • centos-upgrade-libcurl-minimal-debuginfo

With Rapid7 live dashboards, I have a clear view of all the assets on my network, which ones can be exploited, and what I need to do in order to reduce the risk in my environment in real-time. No other tool gives us that kind of value and insight.

– Scott Cheney, Manager of Information Security, Sierra View Medical Center

;