Vulnerability Name:

CVE-2011-1961 (CCN-68819)

Assigned:2011-08-09
Published:2011-08-09
Updated:2022-02-28
Summary:The telnet URI handler in Microsoft Internet Explorer 6 through 9 does not properly launch the handler application, which allows remote attackers to execute arbitrary programs via a crafted web site, aka "Telnet Handler Remote Code Execution Vulnerability."
CVSS v3 Severity:10.0 Critical (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Changed
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
CVSS v2 Severity:9.3 High (CVSS v2 Vector: AV:N/AC:M/Au:N/C:C/I:C/A:C)
6.9 Medium (Temporal CVSS v2 Vector: AV:N/AC:M/Au:N/C:C/I:C/A:C/E:U/RL:OF/RC:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (Au): None
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): Complete
9.3 High (CCN CVSS v2 Vector: AV:N/AC:M/Au:N/C:C/I:C/A:C)
6.9 Medium (CCN Temporal CVSS v2 Vector: AV:N/AC:M/Au:N/C:C/I:C/A:C/E:U/RL:OF/RC:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Medium
Athentication (Au): None
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): Complete
Vulnerability Type:CWE-noinfo
Vulnerability Consequences:Gain Access
References:Source: MITRE
Type: CNA
CVE-2011-1961

Source: JVN
Type: Third Party Advisory, VDB Entry
JVN#80404511

Source: JVNDB
Type: Third Party Advisory, VDB Entry
JVNDB-2011-000060

Source: CCN
Type: Microsoft Security Bulletin MS11-099
Cumulative Security Update for Internet Explorer (2618444)

Source: CCN
Type: Microsoft Security Bulletin MS12-010
Cumulative Security Update for Internet Explorer (2647516)

Source: CCN
Type: Microsoft Security Bulletin MS12-023
Cumulative Security Update for Internet Explorer (2675157)

Source: CCN
Type: Microsoft Security Bulletin MS12-037
Cumulative Security Update for Internet Explorer (2699988)

Source: CCN
Type: Microsoft Security Bulletin MS12-044
Cumulative Security Update for Internet Explorer (2719177)

Source: CCN
Type: Microsoft Security Bulletin MS12-052
Cumulative Security Update for Internet Explorer (2722913)

Source: CCN
Type: Microsoft Security Bulletin MS11-057
Cumulative Security Update for Internet Explorer (2559049)

Source: CCN
Type: Microsoft Security Bulletin MS11-081
Cumulative Security Update for Internet Explorer (2586448)

Source: CCN
Type: BID-49027
Microsoft Internet Explorer Telnet URI Handler Remote Code Execution Vulnerability

Source: CERT
Type: Third Party Advisory, US Government Resource
TA11-221A

Source: MS
Type: Patch, Vendor Advisory
MS11-057

Source: XF
Type: UNKNOWN
ms-ie-telnet-code-exec(68819)

Source: OVAL
Type: Tool Signature
oval:org.mitre.oval:def:12684

Vulnerable Configuration:Configuration 1:
  • cpe:/a:microsoft:internet_explorer:6:*:*:*:*:*:*:*
  • AND
  • cpe:/o:microsoft:windows_server_2003:-:sp2:*:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_xp:-:sp2:*:*:*:*:x64:*
  • OR cpe:/o:microsoft:windows_xp:-:sp3:*:*:*:*:*:*

    • Configuration 2:
  • cpe:/a:microsoft:internet_explorer:7:*:*:*:*:*:*:*
  • AND
  • cpe:/o:microsoft:windows_server_2003:-:sp2:*:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_server_2008:-:-:*:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_server_2008:*:sp2:*:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_vista:-:sp1:*:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_vista:-:sp2:*:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_xp:-:sp2:*:*:professional:*:x64:*
  • OR cpe:/o:microsoft:windows_xp:-:sp3:*:*:*:*:*:*

    • Configuration 3:
  • cpe:/a:microsoft:internet_explorer:8:*:*:*:*:*:*:*
  • AND
  • cpe:/o:microsoft:windows_7:-:*:*:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_server_2003:-:sp2:*:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_server_2008:-:-:*:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_server_2008:*:sp2:*:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_server_2008:r2:-:*:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_vista:-:sp1:*:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_vista:-:sp2:*:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_xp:-:sp2:*:*:professional:*:x64:*
  • OR cpe:/o:microsoft:windows_xp:-:sp3:*:*:*:*:*:*

    • Configuration 4:
  • cpe:/a:microsoft:internet_explorer:9:*:*:*:*:*:*:*
  • AND
  • cpe:/o:microsoft:windows_7:-:*:*:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_7:-:sp1:*:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_server_2008:*:sp2:*:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_server_2008:r2:-:*:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_vista:-:sp2:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/a:microsoft:internet_explorer:6.0:*:*:*:*:*:*:*
  • OR cpe:/a:microsoft:internet_explorer:7.0:*:*:*:*:*:*:*
  • OR cpe:/a:microsoft:ie:8.0:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:org.mitre.oval:def:12684
    V
    		Telnet Handler Remote Code Execution Vulnerability
    2014-08-18
    BACK
    microsoft internet explorer 6
    microsoft windows server 2003 - sp2
    microsoft windows xp - sp2
    microsoft windows xp - sp3
    microsoft internet explorer 7
    microsoft windows server 2003 - sp2
    microsoft windows server 2008 - -
    microsoft windows server 2008 - sp2
    microsoft windows vista - sp1
    microsoft windows vista - sp2
    microsoft windows xp - sp2
    microsoft windows xp - sp3
    microsoft internet explorer 8
    microsoft windows 7 -
    microsoft windows server 2003 - sp2
    microsoft windows server 2008 - -
    microsoft windows server 2008 - sp2
    microsoft windows server 2008 r2 -
    microsoft windows server 2008 r2 sp1
    microsoft windows vista - sp1
    microsoft windows vista - sp2
    microsoft windows xp - sp2
    microsoft windows xp - sp3
    microsoft internet explorer 9
    microsoft windows 7 -
    microsoft windows 7 - sp1
    microsoft windows server 2008 - sp2
    microsoft windows server 2008 r2 -
    microsoft windows server 2008 r2 sp1
    microsoft windows vista - sp2
    microsoft ie 6.0
    microsoft ie 7.0
    microsoft ie 8.0