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Secunia Security Advisory 40727

Secunia Security Advisory 40727
Posted Jul 28, 2010
Authored by Secunia | Site secunia.com

Secunia Security Advisory - A vulnerability has been discovered in KVIrc, which can be exploited by malicious people to hijack IRC connections.

tags | advisory
SHA-256 | 04f006656d5afdeb39aa80ce20a5b7dc4ed746fecdb8ce2ca287f5bccb32ef2b

Secunia Security Advisory 40727

Change Mirror Download
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"From 2007 to 2009 vulnerabilities in a typical end-user PC almost doubled from about 220 to 420."

Non-Microsoft software to blame for increase in vulnerabilities affecting typical Windows end-users, read more:

http://secunia.com/gfx/pdf/Secunia_Half_Year_Report_2010.pdf


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TITLE:
KVIrc Failed DCC Handshake Notification Command Injection
Vulnerability

SECUNIA ADVISORY ID:
SA40727

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/40727/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=40727

RELEASE DATE:
2010-07-28

DISCUSS ADVISORY:
http://secunia.com/advisories/40727/#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/40727/

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=40727

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:
A vulnerability has been discovered in KVIrc, which can be exploited
by malicious people to hijack IRC connections.

The vulnerability is caused due to the application not properly
handling carriage return ("\r") characters when processing CTCP
requests. This can be exploited to e.g. inject carriage return
characters into KVIrc's failed DCC handshake notification, which can
be used to e.g. execute IRC commands in the context of the user's IRC
session.

Successful exploitation requires that the
"boolNotifyFailedDccHandshakes" option is enabled (default).

The vulnerability is confirmed in version 4.0.0 for Windows. Other
versions may also be affected.

SOLUTION:
Fixed in the SVN repository.

PROVIDED AND/OR DISCOVERED BY:
unic0rn

ORIGINAL ADVISORY:
https://svn.kvirc.de/kvirc/ticket/858

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/

----------------------------------------------------------------------

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.

Subscribe:
http://secunia.com/advisories/secunia_security_advisories/

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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