Vulnerability CVE-2009-0050
Published: 2009-01-07   Modified: 2012-02-13

Description:
Lasso 2.2.1 and earlier does not properly check the return value from the OpenSSL DSA_verify function, which allows remote attackers to bypass validation of the certificate chain via a malformed SSL/TLS signature, a similar vulnerability to CVE-2008-5077.

Type:

CWE-20

 (Improper Input Validation)

CVSS2 => (AV:N/AC:M/Au:N/C:N/I:P/A:N)

CVSS Base Score
Impact Subscore
Exploitability Subscore
4.3/10
2.9/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
None
Partial
None
Affected software
Lasso -> Lasso 
Entrouvert -> Lasso 

 References:
http://www.ocert.org/advisories/ocert-2008-016.html
http://www.securityfocus.com/archive/1/499827/100/0/threaded
https://exchange.xforce.ibmcloud.com/vulnerabilities/47837
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