Vulnerabilities > CVE-2011-3208 - Improper Restriction of Operations Within the Bounds of A Memory Buffer vulnerability in CMU Cyrus Imap Server
Attack vector
NETWORK Attack complexity
LOW Privileges required
NONE Confidentiality impact
PARTIAL Integrity impact
PARTIAL Availability impact
PARTIAL Summary
Stack-based buffer overflow in the split_wildmats function in nntpd.c in nntpd in Cyrus IMAP Server before 2.3.17 and 2.4.x before 2.4.11 allows remote attackers to execute arbitrary code via a crafted NNTP command.
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.
Nessus
NASL family Mandriva Local Security Checks NASL id MANDRIVA_MDVSA-2011-149.NASL description Multiple vulnerabilities has been discovered and corrected in cyrus-imapd : Stack-based buffer overflow in the split_wildmats function in nntpd.c in nntpd in Cyrus IMAP Server before 2.3.17 and 2.4.x before 2.4.11 allows remote attackers to execute arbitrary code via a crafted NNTP command (CVE-2011-3208). Secunia Research has discovered a vulnerability in Cyrus IMAPd, which can be exploited by malicious people to bypass certain security restrictions. The vulnerability is caused due to an error within the authentication mechanism of the NNTP server, which can be exploited to bypass the authentication process and execute commands intended for authenticated users by sending an AUTHINFO USER command without a following AUTHINFO PASS command (CVE-2011-3372). Packages for 2009.0 are provided as of the Extended Maintenance Program. Please visit this link to learn more: http://store.mandriva.com/product_info.php?cPath=149 products_id=490 The updated packages have been patched to correct these issues. last seen 2020-06-01 modified 2020-06-02 plugin id 56525 published 2011-10-17 reporter This script is Copyright (C) 2011-2019 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/56525 title Mandriva Linux Security Advisory : cyrus-imapd (MDVSA-2011:149) NASL family Oracle Linux Local Security Checks NASL id ORACLELINUX_ELSA-2011-1317.NASL description From Red Hat Security Advisory 2011:1317 : Updated cyrus-imapd packages that fix one security issue are now available for Red Hat Enterprise Linux 4, 5, and 6. The Red Hat Security Response Team has rated this update as having important 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 cyrus-imapd packages contain a high-performance mail server with IMAP, POP3, NNTP, and Sieve support. A buffer overflow flaw was found in the cyrus-imapd NNTP server, nntpd. A remote user able to use the nntpd service could use this flaw to crash the nntpd child process or, possibly, execute arbitrary code with the privileges of the cyrus user. (CVE-2011-3208) Red Hat would like to thank Greg Banks for reporting this issue. Users of cyrus-imapd are advised to upgrade to these updated packages, which contain a backported patch to correct this issue. After installing the update, cyrus-imapd will be restarted automatically. last seen 2020-06-01 modified 2020-06-02 plugin id 68352 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/68352 title Oracle Linux 4 / 5 / 6 : cyrus-imapd (ELSA-2011-1317) NASL family Amazon Linux Local Security Checks NASL id ALA_ALAS-2011-02.NASL description The MITRE CVE database describes CVE-2011-3208 as : A buffer overflow flaw was found in the cyrus-imapd NNTP server, nntpd. A remote user able to use the nntpd service could use this flaw to crash the nntpd child process or, possibly, execute arbitrary code with the privileges of the cyrus user. last seen 2020-06-01 modified 2020-06-02 plugin id 69561 published 2013-09-04 reporter This script is Copyright (C) 2013-2015 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/69561 title Amazon Linux AMI : cyrus-impad (ALAS-2011-02) NASL family CentOS Local Security Checks NASL id CENTOS_RHSA-2011-1317.NASL description Updated cyrus-imapd packages that fix one security issue are now available for Red Hat Enterprise Linux 4, 5, and 6. The Red Hat Security Response Team has rated this update as having important 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 cyrus-imapd packages contain a high-performance mail server with IMAP, POP3, NNTP, and Sieve support. A buffer overflow flaw was found in the cyrus-imapd NNTP server, nntpd. A remote user able to use the nntpd service could use this flaw to crash the nntpd child process or, possibly, execute arbitrary code with the privileges of the cyrus user. (CVE-2011-3208) Red Hat would like to thank Greg Banks for reporting this issue. Users of cyrus-imapd are advised to upgrade to these updated packages, which contain a backported patch to correct this issue. After installing the update, cyrus-imapd will be restarted automatically. last seen 2020-06-01 modified 2020-06-02 plugin id 56247 published 2011-09-22 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/56247 title CentOS 4 / 5 : cyrus-imapd (CESA-2011:1317) NASL family SuSE Local Security Checks NASL id SUSE_CYRUS-IMAPD-7727.NASL description This update of cyrus-imapd fixes a buffer overflow that could potentially be exploited by remote attackers to cause a crash or run arbitrary code. (CVE-2011-3208) last seen 2020-06-01 modified 2020-06-02 plugin id 57175 published 2011-12-13 reporter This script is Copyright (C) 2011-2019 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/57175 title SuSE 10 Security Update : cyrus-imapd (ZYPP Patch Number 7727) NASL family SuSE Local Security Checks NASL id SUSE_CYRUS-IMAPD-7728.NASL description This update of cyrus-imapd fixes a buffer overflow that could have been potentially exploited by remote attackers to cause a crash or run arbitrary code. (CVE-2011-3208) last seen 2020-06-01 modified 2020-06-02 plugin id 56604 published 2011-10-24 reporter This script is Copyright (C) 2011-2019 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/56604 title SuSE 10 Security Update : cyrus-imapd (ZYPP Patch Number 7728) NASL family Debian Local Security Checks NASL id DEBIAN_DSA-2318.NASL description Multiple security issues have been discovered in cyrus-imapd, a highly scalable mail system designed for use in enterprise environments. The Common Vulnerabilities and Exposures project identifies the following problems : - CVE-2011-3208 Coverity discovered a stack-based buffer overflow in the NNTP server implementation (nttpd) of cyrus-imapd. An attacker can exploit this flaw via several crafted NNTP commands to execute arbitrary code. - CVE-2011-3372 Stefan Cornelius of Secunia Research discovered that the command processing of the NNTP server implementation (nttpd) of cyrus-imapd is not properly implementing access restrictions for certain commands and is not checking for a complete, successful authentication. An attacker can use this flaw to bypass access restrictions for some commands and, e.g. exploit CVE-2011-3208 without proper authentication. last seen 2020-03-17 modified 2011-10-07 plugin id 56409 published 2011-10-07 reporter This script is Copyright (C) 2011-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/56409 title Debian DSA-2318-1 : cyrus-imapd-2.2 - multiple vulnerabilities NASL family Amazon Linux Local Security Checks NASL id ALA_ALAS-2011-2.NASL description The cyrus-imapd packages contain a high-performance mail server with IMAP, POP3, NNTP, and Sieve support. A buffer overflow flaw was found in the cyrus-imapd NNTP server, nntpd. A remote user able to use the nntpd service could use this flaw to crash the nntpd child process or, possibly, execute arbitrary code with the privileges of the cyrus user. (CVE-2011-3208) Users of cyrus-imapd are advised to upgrade to these updated packages, which contain a backported patch to correct this issue. After installing the update, cyrus-imapd will be restarted automatically. last seen 2020-06-01 modified 2020-06-02 plugin id 78263 published 2014-10-12 reporter This script is Copyright (C) 2014-2018 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/78263 title Amazon Linux AMI : cyrus-imapd (ALAS-2011-2) NASL family Fedora Local Security Checks NASL id FEDORA_2011-13832.NASL description - security fix : - fixes incomplete authentication checks in nntpd (Secunia SA46093) - other fixed bugs : - delayed delete can fail because of invalid names - cyradm cannot wildcard delete ACLs from a mailbox - Wrong ENABLE result (doubled names) - mbpath output changed from 2.3 to 2.4 for remote mailboxes - xfer fails on unlimited quota (-1) CVE-2011-3208 cyrus-imapd: nntpd buffer overflow in split_wildmats() Bugs Fixed : 3495 P1 enhancement 2.4.10 Cyrus IMAP Improved duplicate suppression 3498 P1 bug 2.4.10 Cyrus IMAP quota command deletes users quota files 2772 P2 bug 2.4.x (next) Cyrus IMAP cmd_thread cores with bogus ids in references header 3300 P3 bug 2.4.2 Cyrus IMAP SOL_TCP is not defined on NetBSD 3439 P3 bug 2.3.16 Cyrus IMAP formatting issue on logging (or memory corruption ?) 3454 P3 bug 2.4.8 Cyrus IMAP ID with unquoted id_param_list keys not accepted 3463 P3 bug 2.4.x (next) Cyrus IMAP Certain mails will crash imapd if using server side threading 3489 P3 bug 2.4.10 Cyrus IMAP 2.4.10 and quota problem 3491 P3 enhancement 2.4.10 Cyrus IMAP UNAUTHENTICATE and NOOP in timsieved 3492 P3 bug 2.4.10 Cyrus IMAP Add response codes to timsieved 3497 P3 bug 2.4.10 Cyrus IMAP In master/master.c:add_service the variable last seen 2020-06-01 modified 2020-06-02 plugin id 56519 published 2011-10-17 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/56519 title Fedora 16 : cyrus-imapd-2.4.12-1.fc16 (2011-13832) NASL family SuSE Local Security Checks NASL id SUSE_11_3_CYRUS-IMAPD-110909.NASL description This update of cyrus-imapd fixes a buffer overflow that could potentially be exploited by remote attackers to cause a crash or run arbitrary code (CVE-2011-3208). last seen 2020-06-01 modified 2020-06-02 plugin id 75458 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/75458 title openSUSE Security Update : cyrus-imapd (openSUSE-SU-2011:1036-1) NASL family Scientific Linux Local Security Checks NASL id SL_20110919_CYRUS_IMAPD_ON_SL4_X.NASL description The cyrus-imapd packages contain a high-performance mail server with IMAP, POP3, NNTP, and Sieve support. A buffer overflow flaw was found in the cyrus-imapd NNTP server, nntpd. A remote user able to use the nntpd service could use this flaw to crash the nntpd child process or, possibly, execute arbitrary code with the privileges of the cyrus user. (CVE-2011-3208) Users of cyrus-imapd are advised to upgrade to these updated packages, which contain a backported patch to correct this issue. After installing the update, cyrus-imapd will be restarted automatically. last seen 2020-06-01 modified 2020-06-02 plugin id 61136 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/61136 title Scientific Linux Security Update : cyrus-imapd on SL4.x, SL5.x, SL6.x i386/x86_64 NASL family Fedora Local Security Checks NASL id FEDORA_2011-13869.NASL description - cyrus-imapd updated to 2.3.18 - fixes incomplete authentication checks in nntpd (Secunia SA46093) - fix CVE-2011-3208: a remotely exploitable buffer overflow in nntpd 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 56489 published 2011-10-14 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/56489 title Fedora 14 : cyrus-imapd-2.3.18-1.fc14 (2011-13869) NASL family Gentoo Local Security Checks NASL id GENTOO_GLSA-201110-16.NASL description The remote host is affected by the vulnerability described in GLSA-201110-16 (Cyrus IMAP Server: Multiple vulnerabilities) Multiple vulnerabilities have been discovered in the Cyrus IMAP Server. Please review the CVE identifiers referenced below for details. Impact : An unauthenticated local or remote attacker may be able to execute arbitrary code with the privileges of the Cyrus IMAP Server process or cause a Denial of Service. Workaround : There is no known workaround at this time. last seen 2020-06-01 modified 2020-06-02 plugin id 56591 published 2011-10-24 reporter This script is Copyright (C) 2011-2018 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/56591 title GLSA-201110-16 : Cyrus IMAP Server: Multiple vulnerabilities NASL family Red Hat Local Security Checks NASL id REDHAT-RHSA-2011-1317.NASL description Updated cyrus-imapd packages that fix one security issue are now available for Red Hat Enterprise Linux 4, 5, and 6. The Red Hat Security Response Team has rated this update as having important 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 cyrus-imapd packages contain a high-performance mail server with IMAP, POP3, NNTP, and Sieve support. A buffer overflow flaw was found in the cyrus-imapd NNTP server, nntpd. A remote user able to use the nntpd service could use this flaw to crash the nntpd child process or, possibly, execute arbitrary code with the privileges of the cyrus user. (CVE-2011-3208) Red Hat would like to thank Greg Banks for reporting this issue. Users of cyrus-imapd are advised to upgrade to these updated packages, which contain a backported patch to correct this issue. After installing the update, cyrus-imapd will be restarted automatically. last seen 2020-06-01 modified 2020-06-02 plugin id 56235 published 2011-09-20 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/56235 title RHEL 4 / 5 / 6 : cyrus-imapd (RHSA-2011:1317) NASL family SuSE Local Security Checks NASL id SUSE_11_CYRUS-IMAPD-110905.NASL description This update of cyrus-imapd fixes a buffer overflow that could potentially be exploited by remote attackers to cause a crash or run arbitrary code. (CVE-2011-3208) last seen 2020-06-01 modified 2020-06-02 plugin id 57095 published 2011-12-13 reporter This script is Copyright (C) 2011-2019 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/57095 title SuSE 11.1 Security Update : cyrus-imapd (SAT Patch Number 5096) NASL family SuSE Local Security Checks NASL id SUSE_11_4_CYRUS-IMAPD-110909.NASL description This update of cyrus-imapd fixes a buffer overflow that could potentially be exploited by remote attackers to cause a crash or run arbitrary code (CVE-2011-3208). last seen 2020-06-01 modified 2020-06-02 plugin id 75810 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/75810 title openSUSE Security Update : cyrus-imapd (openSUSE-SU-2011:1036-1) NASL family Fedora Local Security Checks NASL id FEDORA_2011-13860.NASL description - security fix : - fixes incomplete authentication checks in nntpd (Secunia SA46093) - other fixed bugs : - delayed delete can fail because of invalid names - cyradm cannot wildcard delete ACLs from a mailbox - Wrong ENABLE result (doubled names) - mbpath output changed from 2.3 to 2.4 for remote mailboxes - xfer fails on unlimited quota (-1) CVE-2011-3208 cyrus-imapd: nntpd buffer overflow in split_wildmats() Bugs Fixed : 3495 P1 enhancement 2.4.10 Cyrus IMAP Improved duplicate suppression 3498 P1 bug 2.4.10 Cyrus IMAP quota command deletes users quota files 2772 P2 bug 2.4.x (next) Cyrus IMAP cmd_thread cores with bogus ids in references header 3300 P3 bug 2.4.2 Cyrus IMAP SOL_TCP is not defined on NetBSD 3439 P3 bug 2.3.16 Cyrus IMAP formatting issue on logging (or memory corruption ?) 3454 P3 bug 2.4.8 Cyrus IMAP ID with unquoted id_param_list keys not accepted 3463 P3 bug 2.4.x (next) Cyrus IMAP Certain mails will crash imapd if using server side threading 3489 P3 bug 2.4.10 Cyrus IMAP 2.4.10 and quota problem 3491 P3 enhancement 2.4.10 Cyrus IMAP UNAUTHENTICATE and NOOP in timsieved 3492 P3 bug 2.4.10 Cyrus IMAP Add response codes to timsieved 3497 P3 bug 2.4.10 Cyrus IMAP In master/master.c:add_service the variable last seen 2020-06-01 modified 2020-06-02 plugin id 56486 published 2011-10-14 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/56486 title Fedora 15 : cyrus-imapd-2.4.12-1.fc15 (2011-13860)
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References
- http://asg.andrew.cmu.edu/archive/message.php?mailbox=archive.cyrus-announce&msg=199
- http://asg.andrew.cmu.edu/archive/message.php?mailbox=archive.cyrus-announce&msg=200
- http://git.cyrusimap.org/cyrus-imapd/commit/?id=0f8f026699829b65733c3081657b24e2174f4f4d
- http://git.cyrusimap.org/cyrus-imapd/commit/?id=3244c18c928fa331f6927e2b8146abe90feafddd
- http://lists.opensuse.org/opensuse-updates/2011-09/msg00019.html
- http://secunia.com/advisories/45938
- http://secunia.com/advisories/45975
- http://secunia.com/advisories/46064
- http://securitytracker.com/id?1026031
- http://www.debian.org/security/2011/dsa-2318
- http://www.mandriva.com/security/advisories?name=MDVSA-2011:149
- http://www.osvdb.org/75307
- http://www.redhat.com/support/errata/RHSA-2011-1317.html
- http://www.securityfocus.com/bid/49534
- https://bugzilla.redhat.com/show_bug.cgi?id=734926
- https://exchange.xforce.ibmcloud.com/vulnerabilities/69679
- https://hermes.opensuse.org/messages/11723935