Vulnerability Monitor

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CVE-2016-9952

The verify_certificate function in lib/vtls/schannel.c in libcurl 7.30.0 through 7.51.0, when built for Windows CE using the schannel TLS backend, makes it easier for remote attackers to conduct man-in-the-middle attacks via a crafted wildcard SAN in a server certificate, as demonstrated by "*.com."

Published

2018-03-12T21:29:00.500

Last Modified

2024-11-21T03:02:03.960

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 8.1 (HIGH)

CVSSv2 Vector

AV:N/AC:M/Au:N/C:P/I:P/A:P

Access Vector: NETWORK
Access Complexity: MEDIUM
Authentication: NONE
Confidentiality Impact: PARTIAL
Integrity Impact: PARTIAL
Availability Impact: PARTIAL

Exploitability Score

8.6

Impact Score

6.4

Weaknesses

Type: Primary
CWE-295
Type: Secondary
CWE-295

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	haxx	curl	≤ 7.51.0	Yes
Operating System	microsoft	windows_embedded_compact	-	No

References

https://curl.haxx.se/CVE-2016-9952.patch Vendor Advisory ([email protected])
https://curl.haxx.se/docs/adv_20161221B.html Vendor Advisory ([email protected])
https://curl.haxx.se/CVE-2016-9952.patch Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://curl.haxx.se/docs/adv_20161221B.html Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)