medium
4.3
CWE
310
Advisory Published
Updated

CVE-2013-4545

First published: Sat Nov 23 2013(Updated: )

cURL and libcurl 7.18.0 through 7.32.0, when built with OpenSSL, disables the certificate CN and SAN name field verification (CURLOPT_SSL_VERIFYHOST) when the digital signature verification (CURLOPT_SSL_VERIFYPEER) is disabled, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary valid certificate.

Credit: secalert@redhat.com

Affected SoftwareAffected VersionHow to fix
curl=7.18.0
curl=7.18.1
curl=7.18.2
curl=7.19.0
curl=7.19.1
curl=7.19.2
curl=7.19.3
curl=7.19.4
curl=7.19.5
curl=7.19.6
curl=7.19.7
curl=7.20.0
curl=7.20.1
curl=7.21.0
curl=7.21.1
curl=7.21.2
curl=7.21.3
curl=7.21.4
curl=7.21.5
curl=7.21.6
curl=7.21.7
curl=7.22.0
curl=7.23.0
curl=7.23.1
curl=7.24.0
curl=7.25.0
curl=7.26.0
curl=7.27.0
curl=7.28.0
curl=7.28.1
curl=7.29.0
curl=7.30.0
curl=7.31.0
curl=7.32.0
libcurl=7.18.0
libcurl=7.18.1
libcurl=7.18.2
libcurl=7.19.0
libcurl=7.19.1
libcurl=7.19.2
libcurl=7.19.3
libcurl=7.19.4
libcurl=7.19.5
libcurl=7.19.6
libcurl=7.19.7
libcurl=7.20.0
libcurl=7.20.1
libcurl=7.21.0
libcurl=7.21.1
libcurl=7.21.2
libcurl=7.21.3
libcurl=7.21.4
libcurl=7.21.5
libcurl=7.21.6
libcurl=7.21.7
libcurl=7.22.0
libcurl=7.23.0
libcurl=7.23.1
libcurl=7.24.0
libcurl=7.25.0
libcurl=7.26.0
libcurl=7.27.0
libcurl=7.28.0
libcurl=7.28.1
libcurl=7.29.0
libcurl=7.30.0
libcurl=7.31.0
libcurl=7.32.0

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2013-4545?

    CVE-2013-4545 is considered a high severity vulnerability due to its potential to allow man-in-the-middle attacks.

  • How do I fix CVE-2013-4545?

    To fix CVE-2013-4545, upgrade cURL and libcurl to a version later than 7.32.0, where the vulnerability has been addressed.

  • What are the affected versions of cURL for CVE-2013-4545?

    The affected versions of cURL are from 7.18.0 to 7.32.0 when built with OpenSSL.

  • Can CVE-2013-4545 allow attackers to manipulate secure connections?

    Yes, CVE-2013-4545 allows attackers to spoof SSL servers, compromising secure connections.

  • What configurations in cURL are affected by CVE-2013-4545?

    CVE-2013-4545 affects cURL configurations where CURLOPT_SSL_VERIFYHOST is disabled when CURLOPT_SSL_VERIFYPEER is also turned off.

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