CVE-2011-1775
tigervnc: vncviewer can send password to server without proper validation of the X.509 certificate
Severity Score
5.8
*CVSS v2
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
The CSecurityTLS::processMsg function in common/rfb/CSecurityTLS.cxx in the vncviewer component in TigerVNC 1.1beta1 does not properly verify the server's X.509 certificate, which allows man-in-the-middle attackers to spoof a TLS VNC server via an arbitrary certificate.
La función CSecurityTLS::processMsg en common/rtb/CSecurityTLS.cxx en el componente vncviewer en tigervnc v1.1beta1 no verifica de forma adecuada el certificado X.509 del servidor, lo que permite a ataques de Hombre en medio (man-in-the-middle) para falsificar un servidor TSL VNC mediante un certificado de su elección.
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2011-04-19 CVE Reserved
- 2011-05-26 CVE Published
- 2023-03-07 EPSS Updated
- 2024-08-06 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-20: Improper Input Validation
CAPEC
References (12)
URL | Tag | Source |
---|---|---|
http://openwall.com/lists/oss-security/2011/05/06/2 | Mailing List | |
http://openwall.com/lists/oss-security/2011/05/09/7 | Mailing List | |
http://secunia.com/advisories/44939 | Third Party Advisory | |
http://www.mail-archive.com/tigervnc-devel%40lists.sourceforge.net/msg01342.html | Mailing List | |
http://www.mail-archive.com/tigervnc-devel%40lists.sourceforge.net/msg01345.html | Mailing List | |
http://www.mail-archive.com/tigervnc-devel%40lists.sourceforge.net/msg01347.html | Mailing List | |
http://www.securityfocus.com/bid/47738 | Vdb Entry | |
https://bugzilla.redhat.com/show_bug.cgi?id=702672 | X_refsource_confirm |
URL | Date | SRC |
---|
URL | Date | SRC |
---|
URL | Date | SRC |
---|---|---|
http://lists.fedoraproject.org/pipermail/package-announce/2011-May/060567.html | 2023-02-13 | |
http://www.redhat.com/support/errata/RHSA-2011-0871.html | 2023-02-13 | |
https://bugzilla.redhat.com/show_bug.cgi?id=702470 | 2011-06-15 | |
https://access.redhat.com/security/cve/CVE-2011-1775 | 2011-06-15 |