Vulnerabilities > CVE-2011-3200 - Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in Rsyslog
Attack vector
UNKNOWN Attack complexity
UNKNOWN Privileges required
UNKNOWN Confidentiality impact
UNKNOWN Integrity impact
UNKNOWN Availability impact
UNKNOWN Summary
Stack-based buffer overflow in the parseLegacySyslogMsg function in tools/syslogd.c in rsyslogd in rsyslog 4.6.x before 4.6.8 and 5.2.0 through 5.8.4 might allow remote attackers to cause a denial of service (application exit) via a long TAG in a legacy syslog message.
Vulnerable Configurations
Common Weakness Enumeration (CWE)
Common Attack Pattern Enumeration and Classification (CAPEC)
- Buffer Overflow via Environment Variables This attack pattern involves causing a buffer overflow through manipulation of environment variables. Once the attacker finds that they can modify an environment variable, they may try to overflow associated buffers. This attack leverages implicit trust often placed in environment variables.
- Overflow Buffers Buffer Overflow attacks target improper or missing bounds checking on buffer operations, typically triggered by input injected by an attacker. As a consequence, an attacker is able to write past the boundaries of allocated buffer regions in memory, causing a program crash or potentially redirection of execution as per the attackers' choice.
- Client-side Injection-induced Buffer Overflow This type of attack exploits a buffer overflow vulnerability in targeted client software through injection of malicious content from a custom-built hostile service.
- Filter Failure through Buffer Overflow In this attack, the idea is to cause an active filter to fail by causing an oversized transaction. An attacker may try to feed overly long input strings to the program in an attempt to overwhelm the filter (by causing a buffer overflow) and hoping that the filter does not fail securely (i.e. the user input is let into the system unfiltered).
- MIME Conversion An attacker exploits a weakness in the MIME conversion routine to cause a buffer overflow and gain control over the mail server machine. The MIME system is designed to allow various different information formats to be interpreted and sent via e-mail. Attack points exist when data are converted to MIME compatible format and back.
Metasploit
| description | This module triggers an off-by-two overflow in the rsyslog daemon. This flaw is unlikely to yield code execution but is effective at shutting down a remote log daemon. This bug was introduced in version 4.6.0 and corrected in 4.6.8/5.8.5. Compiler differences may prevent this bug from causing any noticeable result on many systems (RHEL6 is affected). |
| id | MSF:AUXILIARY/DOS/SYSLOG/RSYSLOG_LONG_TAG |
| last seen | 2020-06-13 |
| modified | 2017-07-24 |
| published | 2011-09-02 |
| references | |
| reporter | Rapid7 |
| source | https://github.com/rapid7/metasploit-framework/blob/master//modules/auxiliary/dos/syslog/rsyslog_long_tag.rb |
| title | rsyslog Long Tag Off-By-Two DoS |
Nessus
NASL family Fedora Local Security Checks NASL id FEDORA_2011-12616.NASL description new upstream version 5.8.5 which fixes CVE-2011-3200 Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-06-01 modified 2020-06-02 plugin id 56292 published 2011-09-26 reporter This script is Copyright (C) 2011-2019 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/56292 title Fedora 15 : rsyslog-5.8.5-1.fc15 (2011-12616) NASL family NewStart CGSL Local Security Checks NASL id NEWSTART_CGSL_NS-SA-2019-0225_RSYSLOG.NASL description The remote NewStart CGSL host, running version CORE 5.04 / MAIN 5.04, has rsyslog packages installed that are affected by a vulnerability: - Stack-based buffer overflow in the parseLegacySyslogMsg function in tools/syslogd.c in rsyslogd in rsyslog 4.6.x before 4.6.8 and 5.2.0 through 5.8.4 might allow remote attackers to cause a denial of service (application exit) via a long TAG in a legacy syslog message. (CVE-2011-3200) Note that Nessus has not tested for this issue but has instead relied only on the application last seen 2020-06-01 modified 2020-06-02 plugin id 131408 published 2019-12-02 reporter This script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/131408 title NewStart CGSL CORE 5.04 / MAIN 5.04 : rsyslog Vulnerability (NS-SA-2019-0225) NASL family Ubuntu Local Security Checks NASL id UBUNTU_USN-1224-1.NASL description It was discovered that rsyslog had an off-by-two error when parsing legacy syslog messages. An attacker could potentially exploit this to cause a denial of service via application crash. Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-06-01 modified 2020-06-02 plugin id 56384 published 2011-10-04 reporter Ubuntu Security Notice (C) 2011-2019 Canonical, Inc. / NASL script (C) 2011-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/56384 title Ubuntu 11.04 : rsyslog vulnerability (USN-1224-1) NASL family Fedora Local Security Checks NASL id FEDORA_2011-12250.NASL description new upstream version 5.8.5 which fixes CVE-2011-3200 Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-06-01 modified 2020-06-02 plugin id 56185 published 2011-09-14 reporter This script is Copyright (C) 2011-2019 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/56185 title Fedora 16 : rsyslog-5.8.5-1.fc16 (2011-12250) NASL family Mandriva Local Security Checks NASL id MANDRIVA_MDVSA-2011-134.NASL description A vulnerability was discovered and corrected in rsyslog : Stack-based buffer overflow in the parseLegacySyslogMsg function in tools/syslogd.c in rsyslogd in rsyslog 4.6.x before 4.6.8 and 5.2.0 through 5.8.4 might allow remote attackers to cause a denial of service (application exit) via a long TAG in a legacy syslog message (CVE-2011-3200). The updated packages have been patched to correct this issue. last seen 2020-06-01 modified 2020-06-02 plugin id 56160 published 2011-09-12 reporter This script is Copyright (C) 2011-2019 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/56160 title Mandriva Linux Security Advisory : rsyslog (MDVSA-2011:134-1) NASL family Oracle Linux Local Security Checks NASL id ORACLELINUX_ELSA-2011-1247.NASL description From Red Hat Security Advisory 2011:1247 : Updated rsyslog packages that fix one security issue are now available for Red Hat Enterprise Linux 6. The Red Hat Security Response Team has rated this update as having moderate security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section. The rsyslog packages provide an enhanced, multi-threaded syslog daemon that supports MySQL, syslog/TCP, RFC 3195, permitted sender lists, filtering on any message part, and fine grained output format control. A two byte buffer overflow flaw was found in the rsyslog daemon last seen 2020-06-01 modified 2020-06-02 plugin id 68343 published 2013-07-12 reporter This script is Copyright (C) 2013-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/68343 title Oracle Linux 6 : rsyslog (ELSA-2011-1247) NASL family Fedora Local Security Checks NASL id FEDORA_2011-12282.NASL description updated package which fixes CVE-2011-3200 Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-06-01 modified 2020-06-02 plugin id 56203 published 2011-09-15 reporter This script is Copyright (C) 2011-2019 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/56203 title Fedora 14 : rsyslog-4.6.3-3.fc14 (2011-12282) NASL family Scientific Linux Local Security Checks NASL id SL_20110901_RSYSLOG_ON_SL6_X.NASL description The rsyslog packages provide an enhanced, multi-threaded syslog daemon that supports MySQL, syslog/TCP, RFC 3195, permitted sender lists, filtering on any message part, and fine grained output format control. A two byte buffer overflow flaw was found in the rsyslog daemon last seen 2020-06-01 modified 2020-06-02 plugin id 61129 published 2012-08-01 reporter This script is Copyright (C) 2012-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/61129 title Scientific Linux Security Update : rsyslog on SL6.x i386/x86_64 NASL family Red Hat Local Security Checks NASL id REDHAT-RHSA-2011-1247.NASL description Updated rsyslog packages that fix one security issue are now available for Red Hat Enterprise Linux 6. The Red Hat Security Response Team has rated this update as having moderate security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section. The rsyslog packages provide an enhanced, multi-threaded syslog daemon that supports MySQL, syslog/TCP, RFC 3195, permitted sender lists, filtering on any message part, and fine grained output format control. A two byte buffer overflow flaw was found in the rsyslog daemon last seen 2020-06-01 modified 2020-06-02 plugin id 56047 published 2011-09-02 reporter This script is Copyright (C) 2011-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/56047 title RHEL 6 : rsyslog (RHSA-2011:1247) NASL family SuSE Local Security Checks NASL id SUSE_11_3_RSYSLOG-110905.NASL description Specially crafted log messages could crash rsyslogd (CVE-2011-3200). last seen 2020-06-01 modified 2020-06-02 plugin id 75728 published 2014-06-13 reporter This script is Copyright (C) 2014-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/75728 title openSUSE Security Update : rsyslog (openSUSE-SU-2011:1020-1) NASL family SuSE Local Security Checks NASL id SUSE_11_4_RSYSLOG-110905.NASL description Specially crafted log messages could crash rsyslogd (CVE-2011-3200). last seen 2020-06-01 modified 2020-06-02 plugin id 76013 published 2014-06-13 reporter This script is Copyright (C) 2014-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/76013 title openSUSE Security Update : rsyslog (openSUSE-SU-2011:1020-1)
Redhat
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References
- http://git.adiscon.com/?p=rsyslog.git%3Ba=commit%3Bh=1ca6cc236d1dabf1633238b873fb1c057e52f95e
- http://lists.fedoraproject.org/pipermail/package-announce/2011-September/065837.html
- http://lists.fedoraproject.org/pipermail/package-announce/2011-September/065941.html
- http://lists.opensuse.org/opensuse-updates/2011-09/msg00013.html
- http://secunia.com/advisories/45922
- http://secunia.com/advisories/46027
- http://securitytracker.com/id?1026000
- http://www.mandriva.com/security/advisories?name=MDVSA-2011:134
- http://www.redhat.com/support/errata/RHSA-2011-1247.html
- http://www.rsyslog.com/potential-dos-with-malformed-tag/
- http://www.securityfocus.com/bid/49413
- https://bugzilla.redhat.com/show_bug.cgi?id=727644
- http://git.adiscon.com/?p=rsyslog.git%3Ba=commit%3Bh=1ca6cc236d1dabf1633238b873fb1c057e52f95e
- https://bugzilla.redhat.com/show_bug.cgi?id=727644
- http://www.securityfocus.com/bid/49413
- http://www.rsyslog.com/potential-dos-with-malformed-tag/
- http://www.redhat.com/support/errata/RHSA-2011-1247.html
- http://www.mandriva.com/security/advisories?name=MDVSA-2011:134
- http://securitytracker.com/id?1026000
- http://secunia.com/advisories/46027
- http://secunia.com/advisories/45922
- http://lists.opensuse.org/opensuse-updates/2011-09/msg00013.html
- http://lists.fedoraproject.org/pipermail/package-announce/2011-September/065941.html
- http://lists.fedoraproject.org/pipermail/package-announce/2011-September/065837.html