FrSIRT - uTorrent WebUI HTTP "Range" Header Denial of Service Vulnerability / Exploit (Security Advisories)

French Security Incident Response Team

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uTorrent WebUI HTTP "Range" Header Denial of Service Vulnerability

Title : uTorrent WebUI HTTP "Range" Header Denial of Service Vulnerability
Advisory ID : FrSIRT/ADV-2008-0327
CVE ID : GENERIC-MAP-NOMATCH
Rated as : Low Risk

Remotely Exploitable : Yes
Locally Exploitable : Yes
Release Date : 2008-01-31

Advisory Details

Description

Affected Products

Solution

References

Technical Description

A vulnerability has been identified in uTorrent, which could be exploited by attackers to cause a denial of service. This issue is caused by an input validation error in the WebUI when processing a large number of HTTP requests with a malformed "Range" header, which could be exploited to cause a vulnerable client to crash, creating a denial of service condition [...]

Affected Products

uTorrent version 1.7.6 (build 7859) and prior
uTorrent version 1.8-alpha-7928 and prior

Credits

Vulnerabilities reported by Luigi Auriemma and the vendor.

ChangeLog

2008-01-31 : Initial release

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