838 : Apache HTTP Server Chunked Encoding Overflow
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Info

Last Modified

5 months ago

Percent Complete

90%

Disclosure

Jun 19, 2002

Discovery

Unknown

Dates

Exploit

Unknown

Solution

Unknown

Description

Apache Web Server contains a flaw that allows a remote attacker to execute arbitrary code. The issue is due to the mechanism that calculates the size of "chunked" encoding not properly interpreting the buffer size of data being transferred. By sending a specially crafted chunk of data, an attacker can possibly execute arbitrary code or crash the server.

Classification

Location: Remote/Network Access Required
Attack Type: Input Manipulation
Impact: Loss of Integrity
Exploit: Exploit Available
Disclosure: OSVDB Verified
OSVDB: Web Related

Solution

Upgrade to version 1.3.26, 2.0.39 or higher, as it has been reported to fix this vulnerability. An upgrade is required as there are no known workarounds.

Products

Apache Software Foundation
Watch-list
Web Server
Watch-list
1.2.x
1.3.0
1.3.1
1.3.11
1.3.12
1.3.14
1.3.17
1.3.19
1.3.2
1.3.20
1.3.22
1.3.23
1.3.24
1.3.3
1.3.4
1.3.6
1.3.9
2.0.15
2.0.16
2.0.18
2.0.28
2.0.32
2.0.35
2.0.36

References

Tools & Filters

Nessus

11030 12305 14778 14968 14969 14970

Snort

1807 1808 1809

Credit

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