ID

VAR-200505-0076

CVE

CVE-2005-0707

TITLE

Ipswitch Collaboration Suite IMAP EXAMINE Command buffer overflow vulnerability

DESCRIPTION

Buffer overflow in the IMAP daemon (IMAP4d32.exe) for Ipswitch Collaboration Suite (ICS) before 8.15 Hotfix 1 allows remote authenticated users to execute arbitrary code via a long EXAMINE command. The Ipswitch Collaboration Suite IMail IMAP service is reported prone to a buffer overflow vulnerability. The issue exists due to a lack of sufficient boundary checks performed on arguments that are passed to the EXAMINE command. It is conjectured that a remote authenticated attacker may exploit this vulnerability to execute arbitrary code in the context of the affected service. Immediate consequences of a failed exploit attempt would be a denial of service due to the application crashing on an access violation. IMail Server version 8.13 an earlier are reported prone to this vulnerability. ---------------------------------------------------------------------- Monitor, Filter, and Manage Security Information - Filtering and Management of Secunia advisories - Overview, documentation, and detailed reports - Alerting via email and SMS Request Trial: https://ca.secunia.com/?f=l ---------------------------------------------------------------------- TITLE: Ipswitch Collaboration Suite IMAP EXAMINE Buffer Overflow SECUNIA ADVISORY ID: SA14546 VERIFY ADVISORY: http://secunia.com/advisories/14546/ CRITICAL: Moderately critical IMPACT: System access WHERE: >From remote SOFTWARE: Ipswitch Collaboration Suite (ICS) 1.x http://secunia.com/product/4773/ IMail Server 8.x http://secunia.com/product/3048/ DESCRIPTION: Nico Steinhardt has reported a vulnerability in Ipswitch Collaboration Suite, which can be exploited by malicious users to compromise a vulnerable system. SOLUTION: Apply IMail Server 8.15 Hotfix 1: ftp://ftp.ipswitch.com/Ipswitch/Product_Support/IMail/IM815HF1.exe PROVIDED AND/OR DISCOVERED BY: Nico Steinhardt ORIGINAL ADVISORY: iDEFENSE: http://www.idefense.com/application/poi/display?id=216&type=vulnerabilities ---------------------------------------------------------------------- About: This Advisory was delivered by Secunia as a free service to help everybody keeping their systems up to date against the latest vulnerabilities. Subscribe: http://secunia.com/secunia_security_advisories/ Definitions: (Criticality, Where etc.) http://secunia.com/about_secunia_advisories/ Please Note: Secunia recommends that you verify all advisories you receive by clicking the link. Secunia NEVER sends attached files with advisories. Secunia does not advise people to install third party patches, only use those supplied by the vendor. ---------------------------------------------------------------------- Unsubscribe: Secunia Security Advisories http://secunia.com/sec_adv_unsubscribe/?email=packet%40packetstormsecurity.org ---------------------------------------------------------------------- . BACKGROUND Ipswitch Collaboration Suite (ICS) is a comprehensive communication and collaboration solution for Microsoft Windows with a customer base of over 53 million users. More information is available on the vendor's website: http://www.ipswitch.com/products/IMail_Server/index.html II. The EXAMINE command selects a mailbox so that messages within the mailbox may be accessed with read-only privileges. EXAMINE requests with malformed mailbox names of 259 bytes will overwrite the saved stack frame pointer, resulting in potential process execution control. It should be noted that IMAP will append a '/' character to your supplied mailbox name so the most significant byte of the frame pointer will be 0x2e. The output below shows successful control of the frame pointer. (668.f8): Access violation - code c0000005 (first chance) First chance exceptions are reported before any exception handling. This exception may be expected and handled. eax=00000006 ebx=008943b0 ecx=42424242 edx=00c8fad4 esi=008943b0 edi=00000013 eip=0078626d esp=00c9fd20 ebp=2e434343 iopl=0 nv up ei pl zr na po nc cs=001b ss=0023 ds=0023 es=0023 fs=0038 gs=0000 efl=00000246 0078626d ?? ??? Frame pointer overwrites may allow attackers to redirect program flow when the current function returns. It should be noted that the IMAP EXAMINE command is only available after successful authentication. III. The EXAMINE IMAP command is only valid after authentication has occurred, however due to the nature of IMAP servers serving a large user base, this requirement only slightly reduces exposure to the vulnerability. IV. DETECTION iDEFENSE has confirmed that the IMAP4 daemon (IMAP4d32.exe ver. IMail Server is now packaged as part of Ipswitch Collaboration Suite. V. WORKAROUND Use application level content filtering on overly long IMAP commands. VI. VENDOR RESPONSE This vulnerability is addressed in IMail Server 8.15 Hotfix 1 (February 3, 2005), which is available for download at: ftp://ftp.ipswitch.com/Ipswitch/Product_Support/IMail/IM815HF1.exe VII. CVE INFORMATION The Common Vulnerabilities and Exposures (CVE) project has assigned the name CAN-2005-0707 to this issue. This is a candidate for inclusion in the CVE list (http://cve.mitre.org), which standardizes names for security problems. VIII. DISCLOSURE TIMELINE 03/02/2005 Initial vendor notification 03/08/2005 Initial vendor response 03/10/2005 Public disclosure IX. CREDIT Nico Steinhardt is credited with this discovery. Get paid for vulnerability research http://www.idefense.com/poi/teams/vcp.jsp Free tools, research and upcoming events http://labs.idefense.com X. LEGAL NOTICES Copyright (c) 2005 iDEFENSE, Inc. Permission is granted for the redistribution of this alert electronically. It may not be edited in any way without the express written consent of iDEFENSE. If you wish to reprint the whole or any part of this alert in any other medium other than electronically, please email customerservice@idefense.com for permission. Disclaimer: The information in the advisory is believed to be accurate at the time of publishing based on currently available information. Use of the information constitutes acceptance for use in an AS IS condition. There are no warranties with regard to this information. Neither the author nor the publisher accepts any liability for any direct, indirect, or consequential loss or damage arising from use of, or reliance on, this information

AFFECTED PRODUCTS

CVSS

PROBLEMTYPE DATA

THREAT TYPE

local

TYPE

buffer overflow

EXPLOIT AVAILABILITY

EXTERNAL IDS

REFERENCES

CREDITS

Nico Steinhardt iDEFENSE Security Advisory※ labs@idefense.com

SOURCES

LAST UPDATE DATE

2024-08-14T13:40:13.504000+00:00

SOURCES UPDATE DATE

SOURCES RELEASE DATE