HTTP: lighttpd Connection Header Parsing Denial of Service
This signature detects attempts to exploit a known vulnerability against lighttpd. A successful attack can result in a denial-of-service condition.
Extended Description
The http_request_split_value function in request.c in lighttpd before 1.4.32 allows remote attackers to cause a denial of service (infinite loop) via a request with a header containing an empty token, as demonstrated using the "Connection: TE,,Keep-Alive" header.
Affected Products
Lighttpd lighttpd
Short Name
HTTP:LIGHTHTTPD-CONNECTION-DOS
Severity
Minor
Recommended
False
Recommended Action
Drop
Category
HTTP
Keywords
CVE-2012-5533 Connection Denial Header Parsing Service bid:56619 lighttpd of
Release Date
01/07/2013
Supported Platforms
srx-branch-12.3
srx-19.3
srx-branch-19.3
vsrx3bsd-19.2
srx-branch-19.4
vsrx-19.4
mx-12.3
mx-19.4
vmx-19.4
mx-19.3
vsrx3bsd-19.4
srx-19.4
vsrx-12.3
vmx-19.3
vsrx-19.2
srx-12.3
Sigpack Version
3761
False Positive
Unknown
Vendors
Lighttpd
CVSS Score
5.0