[SA20407] F-Secure Products Web Console Buffer Overflow Vulnerability

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TITLE:
F-Secure Products Web Console Buffer Overflow Vulnerability

SECUNIA ADVISORY ID:
SA20407

VERIFY ADVISORY:
http://secunia.com/advisories/20407/

CRITICAL:
Moderately critical

IMPACT:
DoS, System access

WHERE:
>From remote

SOFTWARE:
F-Secure Internet Gatekeeper 6.x
http://secunia.com/product/3339/
F-Secure Anti-Virus for Microsoft Exchange 6.x
http://secunia.com/product/454/

DESCRIPTION:
A vulnerability has been reported in F-Secure Anti-Virus for
Microsoft Exchange and F-Secure Internet Gatekeeper, which
potentially can be exploited by malicious people to compromise a
vulnerable system.

The vulnerability is caused due to an unspecified boundary error
within the web console prior to authentication and can be exploited
to cause a buffer overflow.

Successful exploitation crashes the web console process and may
potentially allow execution of arbitrary code.

NOTE: By default connections are only allowed from localhost. The
criticality of the vulnerability therefore depends on how the web
console has been configured to accept connections.

SOLUTION:
Update to a fixed version or apply hotfix.

– F-Secure Anti-Virus for Microsoft Exchange –

Apply hotfix for version 6.40:
ftp://ftp.f-secure.com/support/hotfix/fsav-mse/fsavmse640-05.zip

– F-Secure Internet Gatekeeper –

Update to version 6.60 or apply hotfix (for version 6.50):
ftp://ftp.f-secure.com/support/hotfix/fsig/fsigk650-01.zip

PROVIDED AND/OR DISCOVERED BY:
The vendor credits Mikko Korppi.

ORIGINAL ADVISORY:
http://www.f-secure.com/security/fsc-2006-3.shtml

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