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TITLE:
InetServer SMTP / POP3 Service Format String Vulnerabilities

SECUNIA ADVISORY ID:
SA43035

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/43035/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=43035

RELEASE DATE:
2011-01-25

DISCUSS ADVISORY:
http://secunia.com/advisories/43035/#comments

AVAILABLE ON SITE AND IN CUSTOMER AREA:
 * Last Update
 * Popularity
 * Comments
 * Criticality Level
 * Impact
 * Where
 * Solution Status
 * Operating System / Software
 * CVE Reference(s)

http://secunia.com/advisories/43035/

ONLY AVAILABLE IN CUSTOMER AREA:
 * Authentication Level
 * Report Reliability
 * Secunia PoC
 * Secunia Analysis
 * Systems Affected
 * Approve Distribution
 * Remediation Status
 * Secunia CVSS Score
 * CVSS

https://ca.secunia.com/?page=viewadvisory&vuln_id=43035

ONLY AVAILABLE WITH SECUNIA CSI AND SECUNIA PSI:
 * AUTOMATED SCANNING

http://secunia.com/vulnerability_scanning/personal/
http://secunia.com/vulnerability_scanning/corporate/wsus_sccm_3rd_third_party_patching/

DESCRIPTION:
Two vulnerabilities have been discovered in InetServer, which can be
exploited by malicious users and malicious people to compromise a
vulnerable system.

1) A format string error when processing SMTP commands can be
exploited to corrupt memory via a specially crafted string sent to
the SMTP service.

Successful exploitation of this vulnerability allows execution of
arbitrary code.

2) A format string error when processing POP3 commands can be
exploited to corrupt memory via a specially crafted string passed to
e.g. the RETR command.

Successful exploitation of this vulnerability allows execution of
arbitrary code, but requires valid user credentials.

The vulnerabilities are confirmed in version 3.2.3. Other versions
may also be affected.

SOLUTION:
Restrict access to trusted hosts only.

PROVIDED AND/OR DISCOVERED BY:
1) G13
2) dmnt

Additional details provided by Secunia Research.

OTHER REFERENCES:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

DEEP LINKS:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXTENDED DESCRIPTION:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXTENDED SOLUTION:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXPLOIT:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

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About:
This Advisory was delivered by Secunia as a free service to help
private users keeping their systems up to date against the latest
vulnerabilities.

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Definitions: (Criticality, Where etc.)
http://secunia.com/advisories/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.

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