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To improve our services to our customers, we have made a number of
additions to the Secunia Advisories and have started translating the
advisories to German.

The improvements will help our customers to get a better
understanding of how we reached our conclusions, how it was rated,
our thoughts on exploitation, attack vectors, and scenarios.

This includes:
* Reason for rating
* Extended description
* Extended solution
* Exploit code or links to exploit code
* Deep links

Read the full description:
http://corporate.secunia.com/products/48/?r=l

Contact Secunia Sales for more information:
http://corporate.secunia.com/how_to_buy/15/?r=l

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TITLE:
Sybase Enterprise Portal RSA Signature Forgery

SECUNIA ADVISORY ID:
SA22949

VERIFY ADVISORY:
http://secunia.com/advisories/22949/

CRITICAL:
Less critical

IMPACT:
Security Bypass

WHERE:
>From remote

SOFTWARE:
Sybase Enterprise Portal 6.x
http://secunia.com/product/12646/

DESCRIPTION:
Sybase has acknowledged a vulnerability in Sybase Enterprise Portal,
which can be exploited by malicious people to bypass certain security
restrictions.

The vulnerability is caused due to an error within the verification
of certain signatures. If an RSA key with exponent 3 is used, it may
be possible to forge a signature signed by that key.

The vulnerability is reported in version 6.0.

SOLUTION:
Do not use RSA keys with exponent 3.

PROVIDED AND/OR DISCOVERED BY:
Reported by the vendor.

ORIGINAL ADVISORY:
http://www.sybase.com/detail?id=1047991

OTHER REFERENCES:
SA21709:
http://secunia.com/advisories/21709/

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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.

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