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CVE-2011-4862

Buffer overflow in libtelnet/encrypt.c in telnetd in FreeBSD 7.3 through 9.0, MIT Kerberos Version 5 Applications (aka krb5-appl) 1.0.2 and...

Basic Information

CVE State
PUBLISHED
Reserved Date
December 19, 2011
Published Date
December 25, 2011
Last Updated
August 07, 2024
Vendor
FreeBSD
Product
FreeBSD
Description
Buffer overflow in libtelnet/encrypt.c in telnetd in FreeBSD 7.3 through 9.0, MIT Kerberos Version 5 Applications (aka krb5-appl) 1.0.2 and earlier, Heimdal 1.5.1 and earlier, GNU inetutils, and possibly other products allows remote attackers to execute arbitrary code via a long encryption key, as exploited in the wild in December 2011.
Tags
metasploit_scanner

CVSS Scores

CVSS v2.0

10.0

Vector: AV:N/AC:L/Au:N/C:C/I:C/A:C

Exploit Status

Exploited in the Wild
Yes (2011-12-25 01:00:00 UTC) Source

References

http://lists.opensuse.org/opensuse-security-announce/2012-01/msg00010.html http://secunia.com/advisories/47399 http://www.debian.org/security/2011/dsa-2375 http://www.redhat.com/support/errata/RHSA-2011-1854.html http://lists.opensuse.org/opensuse-security-announce/2012-01/msg00004.html http://archives.neohapsis.com/archives/bugtraq/2011-12/0172.html http://www.debian.org/security/2011/dsa-2372 http://secunia.com/advisories/47359 http://lists.fedoraproject.org/pipermail/package-announce/2012-January/071640.html http://lists.freebsd.org/pipermail/freebsd-security/2011-December/006120.html http://secunia.com/advisories/47374 http://lists.freebsd.org/pipermail/freebsd-security/2011-December/006118.html http://security.freebsd.org/advisories/FreeBSD-SA-11:08.telnetd.asc http://lists.opensuse.org/opensuse-security-announce/2012-01/msg00005.html http://lists.fedoraproject.org/pipermail/package-announce/2012-January/071627.html http://www.mandriva.com/security/advisories?name=MDVSA-2011:195 http://lists.opensuse.org/opensuse-security-announce/2012-01/msg00007.html http://lists.opensuse.org/opensuse-security-announce/2012-01/msg00011.html http://osvdb.org/78020 http://www.securitytracker.com/id?1026463 http://lists.freebsd.org/pipermail/freebsd-security/2011-December/006117.html http://secunia.com/advisories/47341 http://www.redhat.com/support/errata/RHSA-2011-1852.html http://www.redhat.com/support/errata/RHSA-2011-1853.html http://lists.opensuse.org/opensuse-security-announce/2012-01/msg00014.html http://security.freebsd.org/patches/SA-11:08/telnetd.patch http://secunia.com/advisories/47357 http://secunia.com/advisories/46239 http://lists.opensuse.org/opensuse-security-announce/2012-01/msg00002.html http://secunia.com/advisories/47397 http://secunia.com/advisories/47373 http://lists.opensuse.org/opensuse-security-announce/2012-01/msg00015.html http://lists.freebsd.org/pipermail/freebsd-security/2011-December/006119.html http://secunia.com/advisories/47441 http://git.savannah.gnu.org/cgit/inetutils.git/commit/?id=665f1e73cdd9b38e2d2e11b8db9958a315935592 http://web.mit.edu/kerberos/www/advisories/MITKRB5-SA-2011-008.txt http://www.redhat.com/support/errata/RHSA-2011-1851.html http://www.exploit-db.com/exploits/18280/ http://secunia.com/advisories/47348 http://www.securitytracker.com/id?1026460 http://www.debian.org/security/2011/dsa-2373 https://exchange.xforce.ibmcloud.com/vulnerabilities/71970

Known Exploited Vulnerability Information

Source Added Date
CVE 2011-12-25 01:00:00 UTC

Scanner Integrations

Scanner URL Date Detected
Metasploit https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/linux/telnet/telnet_encrypt_keyid.rb 2025-04-29 11:01:19 UTC

Potential Proof of Concepts

Warning: These PoCs have not been tested and could contain malware. Use at your own risk.

telnet_encrypt_keyid

Type: metasploit • Created: Unknown

Metasploit module for CVE-2011-4862

telnet_encrypt_keyid

Type: metasploit • Created: Unknown

Metasploit module for CVE-2011-4862

kpawar2410/CVE-2011-4862

Type: github • Created: 2020-02-06 09:30:45 UTC • Stars: 1

Final Project for Security and Privacy CS 600.443

hdbreaker/GO-CVE-2011-4862

Type: github • Created: 2017-02-02 18:12:56 UTC • Stars: 4

Go Exploit for CVE-2011-4862

Timeline

  • CVE ID Reserved

  • CVE Published to Public

  • Added to KEVIntel

  • Detected by Metasploit