PT-2011-3503 · Microsoft · Internet Explorer

Makoto Shiotsuki · Published 2011-08-10 · Updated 2022-02-28 · CVE-2011-1961

Positive Technologies (AI Summary)

CVSS v2.0

9.3

High

Base vector

AV:N/AC:M/Au:N/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions Microsoft Internet Explorer versions 6 through 9

Description A remote code execution issue exists in the way Internet Explorer uses the telnet URI handler, allowing attackers to execute arbitrary code in the context of the logged-on user via a crafted web site. This is due to the telnet URI handler in Internet Explorer not properly launching the handler application.

Recommendations For Microsoft Internet Explorer versions 6 through 9, update to a version that properly handles the telnet URI handler to prevent remote code execution. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Related Identifiers

CVE-2011-1961

Affected Products

Internet Explorer

References · 8

• https://nvd.nist.gov/vuln/detail/CVE-2011-1961 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-1961 · Security Note
• https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-057 · Vendor Advisory
• http://us-cert.gov/cas/techalerts/TA11-221A.html · Note
• https://docs.microsoft.com/security-updates/securitybulletins/2011/MS11-057 · Note
• http://jvndb.jvn.jp/ja/contents/2011/JVNDB-2011-000060.html · Note
• http://jvn.jp/en/jp/JVN80404511/index.html · Note
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12684 · Note