Secunia Security Advisory - Jan Schejbal has discovered a vulnerability in AusweisApp, which can be exploited by malicious people to compromise a vulnerable system.
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TITLE:
AusweisApp Certificate Verification Vulnerability
SECUNIA ADVISORY ID:
SA42163
VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/42163/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=42163
RELEASE DATE:
2010-11-10
DISCUSS ADVISORY:
http://secunia.com/advisories/42163/#comments
AVAILABLE ON SITE AND IN CUSTOMER AREA:
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* Criticality Level
* Impact
* Where
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* Operating System / Software
* CVE Reference(s)
http://secunia.com/advisories/42163/
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https://ca.secunia.com/?page=viewadvisory&vuln_id=42163
ONLY AVAILABLE WITH SECUNIA CSI AND SECUNIA PSI:
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http://secunia.com/vulnerability_scanning/personal/
http://secunia.com/vulnerability_scanning/corporate/wsus_sccm_3rd_third_party_patching/
DESCRIPTION:
Jan Schejbal has discovered a vulnerability in AusweisApp, which can
be exploited by malicious people to compromise a vulnerable system.
The vulnerability is caused due to the automatic update functionality
not properly checking the validity of the SSL certificate for the
update server. This can be exploited to spoof an update server (e.g.
via DNS poisoning or a Man-in-the-Middle attack) and store arbitrary
files in the AutoStart folder via a specially crafted update
package.
Successful exploitation allows execution of arbitrary code.
The vulnerability is confirmed in version 1.0.1. Other versions may
also be affected.
SOLUTION:
Do not use the update functionality.
PROVIDED AND/OR DISCOVERED BY:
Jan Schejbal
ORIGINAL ADVISORY:
http://janschejbal.wordpress.com/2010/11/09/ausweisapp-gehackt-malware-uber-autoupdate/
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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