| Vulnerability Name: | CVE-2013-6422 (CCN-89940) |
| Assigned: | 2013-12-17 |
| Published: | 2013-12-17 |
| Updated: | 2016-04-07 |
| Summary: | The GnuTLS backend in libcurl 7.21.4 through 7.33.0, when disabling digital signature verification (CURLOPT_SSL_VERIFYPEER), also disables the CURLOPT_SSL_VERIFYHOST check for CN or SAN host name fields, which makes it easier for remote attackers to spoof servers and conduct man-in-the-middle (MITM) attacks.
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| CVSS v3 Severity: | 5.3 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N)| Exploitability Metrics: | Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None | | Scope: | Scope (S): Unchanged
| | Impact Metrics: | Confidentiality (C): None
Integrity (I): Low
Availibility (A): None |
|
| CVSS v2 Severity: | 4.0 Medium (CVSS v2 Vector: AV:N/AC:H/Au:N/C:P/I:P/A:N)
3.0 Low (Temporal CVSS v2 Vector: AV:N/AC:H/Au:N/C:P/I:P/A:N/E:U/RL:OF/RC:C)| Exploitability Metrics: | Access Vector (AV): Network
Access Complexity (AC): High
Authentication (Au): None | | Impact Metrics: | Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): None |
4.3 Medium (CCN CVSS v2 Vector: AV:N/AC:M/Au:N/C:N/I:P/A:N)
3.2 Low (CCN Temporal CVSS v2 Vector: AV:N/AC:M/Au:N/C:N/I:P/A:N/E:U/RL:OF/RC:C)| Exploitability Metrics: | Access Vector (AV): Network
Access Complexity (AC): Medium
Athentication (Au): None
| | Impact Metrics: | Confidentiality (C): None
Integrity (I): Partial
Availibility (A): None |
|
| Vulnerability Type: | CWE-20
|
| Vulnerability Consequences: | Gain Access |
| References: | Source: CCN
Type: cURL Web Site
cURL
Source: CCN
Type: cURL Security Advisory, December 17th 2013
libcurl cert name check ignore GnuTLS
Source: CONFIRM
Type: Vendor Advisory
http://curl.haxx.se/docs/adv_20131217.html
Source: MITRE
Type: CNA
CVE-2013-6422
Source: DEBIAN
Type: UNKNOWN
DSA-2824
Source: CONFIRM
Type: UNKNOWN
http://www.oracle.com/technetwork/topics/security/cpujul2015-2367936.html
Source: CCN
Type: BID-64431
cURL/libcURL SSL Certificate Host Name Validation Security Bypass Vulnerability
Source: UBUNTU
Type: UNKNOWN
USN-2058-1
Source: XF
Type: UNKNOWN
curl-cve20136422-spoofing(89940)
Source: HP
Type: UNKNOWN
HPSBMU03112
Source: CCN
Type: WhiteSource Vulnerability Database
CVE-2013-6422
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| Vulnerable Configuration: | Configuration 1:
cpe:/o:debian:debian_linux:7.0:*:*:*:*:*:*:*
Configuration 2:
cpe:/o:canonical:ubuntu_linux:12.04:-:lts:*:*:*:*:*OR cpe:/o:canonical:ubuntu_linux:12.10:*:*:*:*:*:*:*OR cpe:/o:canonical:ubuntu_linux:13.04:*:*:*:*:*:*:*OR cpe:/o:canonical:ubuntu_linux:13.10:*:*:*:*:*:*:*
Configuration 3:
cpe:/a:haxx:libcurl:7.21.4:*:*:*:*:*:*:*OR cpe:/a:haxx:libcurl:7.21.5:*:*:*:*:*:*:*OR cpe:/a:haxx:libcurl:7.21.6:*:*:*:*:*:*:*OR cpe:/a:haxx:libcurl:7.21.7:*:*:*:*:*:*:*OR cpe:/a:haxx:libcurl:7.22.0:*:*:*:*:*:*:*OR cpe:/a:haxx:libcurl:7.23.0:*:*:*:*:*:*:*OR cpe:/a:haxx:libcurl:7.23.1:*:*:*:*:*:*:*OR cpe:/a:haxx:libcurl:7.24.0:*:*:*:*:*:*:*OR cpe:/a:haxx:libcurl:7.25.0:*:*:*:*:*:*:*OR cpe:/a:haxx:libcurl:7.26.0:*:*:*:*:*:*:*OR cpe:/a:haxx:libcurl:7.27.0:*:*:*:*:*:*:*OR cpe:/a:haxx:libcurl:7.28.0:*:*:*:*:*:*:*OR cpe:/a:haxx:libcurl:7.28.1:*:*:*:*:*:*:*OR cpe:/a:haxx:libcurl:7.29.0:*:*:*:*:*:*:*OR cpe:/a:haxx:libcurl:7.30.0:*:*:*:*:*:*:*OR cpe:/a:haxx:libcurl:7.31.0:*:*:*:*:*:*:*OR cpe:/a:haxx:libcurl:7.32.0:*:*:*:*:*:*:*OR cpe:/a:haxx:libcurl:7.33.0:*:*:*:*:*:*:*
Configuration CCN 1:
cpe:/a:curl:libcurl:7.21.0:*:*:*:*:*:*:*OR cpe:/a:curl:libcurl:7.22.0:*:*:*:*:*:*:*OR cpe:/a:curl:libcurl:7.23.0:*:*:*:*:*:*:*
 Denotes that component is vulnerable |
| Oval Definitions |
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