Curl < 7.19.6 Certificate Validation Bypass Vulnerability

High Log Correlation Engine Plugin ID 801389


The remote host may be affected by a security bypass vulnerability.


The remote host is running Curl, a download client for various protocols. This version of Curl reportedly fails to properly validate the domain name in a signed CA certificate because the application stops reading the domain name when it encounters a NULL character. An attacker can exploit this by obtaining a legitimate certificate for a subdomain that contains a NULL character. This issue only affects Curl when it is compiled against OpenSSL.


Upgrade to Curl version 7.19.6

See Also

Plugin Details

Severity: High

ID: 801389

File Name: 801389.prm

Family: Web Clients

Published: 2009/08/13

Risk Information

Risk Factor: High


Base Score: 6.4

Temporal Score: 5.3

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:N

Temporal Vector: CVSS2#E:F/RL:OF/RC:C

Vulnerability Information

Patch Publication Date: 2009/08/12

Vulnerability Publication Date: 2009/08/12

Reference Information

CVE: CVE-2009-2417

BID: 36032