Vulnerability Name:

CVE-2009-0050 (CCN-47837)

Assigned:2009-01-07
Published:2009-01-07
Updated:2018-10-11
Summary: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.
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:4.3 Medium (CVSS v2 Vector: AV:N/AC:M/Au:N/C:N/I:P/A:N)
3.2 Low (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
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
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:Bypass Security
References:Source: MITRE
Type: CNA
CVE-2009-0050

Source: MITRE
Type: CNA
CVE-2009-0051

Source: CCN
Type: Lasso Web site
Lasso - Free Liberty Alliance Single Sign On

Source: DEBIAN
Type: DSA-1700
lasso -- incorrect API usage

Source: CCN
Type: oCERT Advisories #2008-016
multiple OpenSSL signature verification API misuse

Source: MISC
Type: UNKNOWN
http://www.ocert.org/advisories/ocert-2008-016.html

Source: BUGTRAQ
Type: UNKNOWN
20090107 [oCERT-2008-016] Multiple OpenSSL signature verification API misuses

Source: CCN
Type: BID-33151
Multiple Vendor OpenSSL 'DSA_verify' Function Signature Verification Vulnerability

Source: CCN
Type: VMSA-2009-0004
ESX Service Console updates for openssl, bind, and vim

Source: CCN
Type: ZXID Web site
ZXID Home - Open Source IdM for the Masses - SAML SSO

Source: XF
Type: UNKNOWN
openssl-dsa-verify-security-bypass(47837)

Source: XF
Type: UNKNOWN
openssl-dsa-verify-security-bypass(47837)

Vulnerable Configuration:Configuration 1:
  • cpe:/a:entrouvert:lasso:1.9.9.0:*:*:*:*:*:*:*
  • OR cpe:/a:entrouvert:lasso:2.0.0-1:*:*:*:*:*:*:*
  • OR cpe:/a:entrouvert:lasso:*:*:*:*:*:*:*:* (Version <= 2.2.1-0)

    • Configuration CCN 1:
  • cpe:/a:zxid:zxid:0.28:*:*:*:*:*:*:*
  • OR cpe:/a:zxid:zxid:0.27:*:*:*:*:*:*:*
  • OR cpe:/a:zxid:zxid:0.26:*:*:*:*:*:*:*
  • OR cpe:/a:zxid:zxid:0.25:*:*:*:*:*:*:*
  • OR cpe:/a:zxid:zxid:0.22:*:*:*:*:*:*:*
  • OR cpe:/a:zxid:zxid:0.21:*:*:*:*:*:*:*
  • OR cpe:/a:zxid:zxid:0.20:*:*:*:*:*:*:*
  • OR cpe:/a:zxid:zxid:0.19:*:*:*:*:*:*:*
  • OR cpe:/a:zxid:zxid:0.18:*:*:*:*:*:*:*
  • OR cpe:/a:zxid:zxid:0.17:*:*:*:*:*:*:*
  • OR cpe:/a:zxid:zxid:0.16:*:*:*:*:*:*:*
  • OR cpe:/a:zxid:zxid:0.15:*:*:*:*:*:*:*
  • OR cpe:/a:zxid:zxid:0.14:*:*:*:*:*:*:*
  • OR cpe:/a:zxid:zxid:0.13:*:*:*:*:*:*:*
  • OR cpe:/a:zxid:zxid:0.12:*:*:*:*:*:*:*
  • OR cpe:/a:zxid:zxid:0.11:*:*:*:*:*:*:*
  • OR cpe:/a:zxid:zxid:0.10:*:*:*:*:*:*:*
  • OR cpe:/a:zxid:zxid:0.9:*:*:*:*:*:*:*
  • OR cpe:/a:zxid:zxid:0.8:*:*:*:*:*:*:*
  • OR cpe:/a:zxid:zxid:0.7:*:*:*:*:*:*:*
  • OR cpe:/a:zxid:zxid:0.6:*:*:*:*:*:*:*
  • OR cpe:/a:zxid:zxid:0.5:*:*:*:*:*:*:*
  • OR cpe:/a:zxid:zxid:0.4:*:*:*:*:*:*:*
  • OR cpe:/a:zxid:zxid:0.3:*:*:*:*:*:*:*
  • OR cpe:/a:zxid:zxid:0.2:*:*:*:*:*:*:*
  • OR cpe:/a:zxid:zxid:0.1:*:*:*:*:*:*:*
  • OR cpe:/a:zxid:zxid:0.29:*:*:*:*:*:*:*
  • AND
  • cpe:/o:debian:debian_linux:4.0:*:*:*:*:*:*:*
  • OR cpe:/a:vmware:esx_server:2.5.5:*:*:*:*:*:*:*
  • OR cpe:/a:vmware:esx_server:3.5:*:*:*:*:*:*:*
  • OR cpe:/a:vmware:esx_server:3.0.3:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:org.mitre.oval:def:7399
    P
    		DSA-1700 lasso -- incorrect API usage
    2014-06-23
    oval:org.mitre.oval:def:13694
    P
    		DSA-1700-1 lasso -- incorrect API usage
    2014-06-23
    oval:org.debian:def:1700
    V
    		incorrect API usage
    2009-01-11
    BACK
    entrouvert lasso 1.9.9.0
    entrouvert lasso 2.0.0-1
    entrouvert lasso *
    zxid zxid 0.28
    zxid zxid 0.27
    zxid zxid 0.26
    zxid zxid 0.25
    zxid zxid 0.22
    zxid zxid 0.21
    zxid zxid 0.20
    zxid zxid 0.19
    zxid zxid 0.18
    zxid zxid 0.17
    zxid zxid 0.16
    zxid zxid 0.15
    zxid zxid 0.14
    zxid zxid 0.13
    zxid zxid 0.12
    zxid zxid 0.11
    zxid zxid 0.10
    zxid zxid 0.9
    zxid zxid 0.8
    zxid zxid 0.7
    zxid zxid 0.6
    zxid zxid 0.5
    zxid zxid 0.4
    zxid zxid 0.3
    zxid zxid 0.2
    zxid zxid 0.1
    zxid zxid 0.29
    debian debian linux 4.0
    vmware esx server 2.5.5
    vmware esx server 3.5
    vmware esx server 3.0.3