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Vulnerability Details : CVE-2006-2502

Stack-based buffer overflow in pop3d in Cyrus IMAPD (cyrus-imapd) 2.3.2, when the popsubfolders option is enabled, allows remote attackers to execute arbitrary code via a long USER command.
Publish Date : 2006-05-22 Last Update Date : 2008-09-05
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- CVSS Scores & Vulnerability Types

CVSS Score
Confidentiality Impact Partial (There is considerable informational disclosure.)
Integrity Impact Partial (Modification of some system files or information is possible, but the attacker does not have control over what can be modified, or the scope of what the attacker can affect is limited.)
Availability Impact Partial (There is reduced performance or interruptions in resource availability.)
Access Complexity High (Specialized access conditions exist. It is hard to exploit and several special conditions must be satisfied to exploit)
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access User
Vulnerability Type(s) Execute CodeOverflow
CWE ID CWE id is not defined for this vulnerability

- Vendor Statements

Not vulnerable. This issue does not affect the versions of cyrus-imapd distributed with Red Hat Enterprise Linux.
Source: Redhat

- Products Affected By CVE-2006-2502

# Product Type Vendor Product Version Update Edition Language
1 Application Cyrus Imapd 2.3.2 Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Cyrus Imapd 1

- References For CVE-2006-2502
SECTRACK 1016131
XF cyrus-imap-pop3d-bo(26578)
FULLDISC 20060521 Cyrus IMAPD pop3d remote compromise aka cyrusFUCK3d
VUPEN ADV-2006-1891
BID 18056 Cyrus IMAPD POP3D Remote Buffer Overflow Vulnerability Release Date:2006-08-14

- Metasploit Modules Related To CVE-2006-2502

Cyrus IMAPD pop3d popsubfolders USER Buffer Overflow
This exploit takes advantage of a stack based overflow. Once the stack corruption has occured it is possible to overwrite a pointer which is later used for a memcpy. This gives us a write anything anywhere condition similar to a format string vulnerability. NOTE: The popsubfolders option is a non-default setting. I chose to overwrite the GOT with my shellcode and return to it. This defeats the VA random patch and possibly other stack protection features. Tested on gentoo-sources Linux 2.6.16. Although Fedora CORE 5 ships with a version containing the vulnerable code, it is not exploitable due to the use of the FORTIFY_SOURCE compiler enhancement
Module type : exploit Rank : normal Platforms : Linux

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