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Home arrow SecurityAlert Database

Arrow  Topic :

Softalk IMAP Server 8.5.1 DoS vulnerability


Arrow  SecurityAlert : 4238
Arrow  CVE : CVE-2008-4041
Arrow  CWE : CWE-20
Arrow  SecurityRisk : Low  Security Risk Low  (About)
Arrow  Remote Exploit : Yes
Arrow  Local Exploit : No
Arrow  Victim interaction required : No
Arrow  Exploit Available : No
Arrow  Credit : J Antunes
Arrow  Published : 13.09.2008

Arrow  Affected Software : softalk_mail_server:softalk_mail_server:8.5.1.431



Arrow  Advisory Content :  

----------------------------------------
Synopsis
----------------------------------------
Softalk IMAP Server 8.5.1 is vulnerable to denial-of-service (DoS)
attacks.
The IMAP server crashes when processing an APPEND command with a
strange parameter (see details bellow). Other commands may also
trigger the same behavior.

Product: Softalk Mail Server
Version: 8.5.1.431 and probably the older versions
Vendor: Softalk (www.softalkltd.com)
Type: Denial-of-service
Risk: service disruption
Remote: Yes
Discovered by: João Antunes (AJECT -- Attack Injection Tool) on
05/Jun/
2008
Exploit: Not Available
Solution: Not Available
Status: Developers were contacted and should be releasing a corrected
version soon (8.5.2 beta 2)

----------------------------------------
Vulnerability Description
----------------------------------------
The vulnerability can be triggered by sending the following messages
to the imap server:
A001 LOGIN user password
A01 APPEND Ax5000 (UIDNEXT MESSAGES) (?) Ax5000 (UIDNEXT MESSAGES)

For the sake of legibility, the APPEND command was presented above in
a condensed form.
The "(...)" means that the parameters should be repeated several times
in the same command (e.g., ten times). Successful exploitation results
in a remote denial of service.



Arrow  References :

http://www.securityfocus.com/bid/30970
http://www.securityfocus.com/archive/1/archive/1/495896/100/0/threaded
http://secunia.com/advisories/31715




Arrow  Feedback :

If you have additional information or notice any errors regarding this security advisory, please use contact form or email us at info()securityreason()com.
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