CVE-2014-2522
MEDIUM severity · CVSS 4 · Improper input validation
4CVSS MEDIUM
Summary
curl and libcurl 7.27.0 through 7.35.0, when running on Windows and using the SChannel/Winssl TLS backend, does not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate when accessing a URL that uses a numerical IP address, which allows man-in-the-middle attackers to spoof servers via an arbitrary valid certificate.
Impact & exploitability
Attack vectorNetwork
Attack complexityHigh
Privileges required—
User interaction—
Confidentiality impact—
Integrity impact—
Availability impactNone
Exploit probability (EPSS)3%
AV:N/AC:H/Au:N/C:P/I:P/A:N
Affected products we track (1)
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.
Official patch: http://curl.haxx.se/docs/adv_20140326D.html ↗
Additional information
- NVD record
- http://curl.haxx.se/docs/adv_20140326D.htmlPatch
- http://secunia.com/advisories/57836Advisory
- http://secunia.com/advisories/57966Advisory
- http://secunia.com/advisories/57968Advisory
- http://seclists.org/oss-sec/2014/q1/585
- http://seclists.org/oss-sec/2014/q1/586
- http://secunia.com/advisories/59458
- http://www-947.ibm.com/support/entry/portal/docdisplay?lndocid=MIGR-5095862