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Files from Peter Grundl

First Active2002-02-05
Last Active2002-09-21
websphere.crash.txt
Posted Sep 21, 2002
Authored by Peter Grundl | Site kpmg.dk

A malicious user can issue a malformed HTTP request and cause the IBM Websphere webserver v4.0.3 and below to crash. Tested against Windows 2000 Server. Patch available here.

tags | web
systems | windows, 2k
MD5 | 9332eb2babb3272771609dcac118250e
kpmg-2002035.txt
Posted Sep 20, 2002
Authored by Peter Grundl | Site kpmg.dk

KPMG security advisory 2002035 - IBM Websphere 4.0.3 on Windows 2000 Server does not process large HTTP headers received from connected clients correctly. This can be used to remotely crash the application. The advisory contains patch information that can be used to counter this vulnerability.

tags | web
systems | windows, 2k
MD5 | cb2d63425744e48f3e62656a2fa96b30
bea.perfpack.txt
Posted Jul 10, 2002
Authored by Peter Grundl | Site kpmg.dk

The Bea Weblogic server v5.1.x - 7.0 on on Windows 2000 and NT s vulnerable to a data/connection flooding vulnerability that will result in the web service crashing with a report of an error in NTDLL.DLL.

tags | web
systems | windows, 2k
MD5 | ef7192fdc9de9b86682b65a2fdea269e
watchguard.dvcp.txt
Posted Jul 10, 2002
Authored by Peter Grundl, Andreas Sandor | Site kpmg.dk

Watchguard Firebox Dynamic VPN Configuration Protocol Denial of Service - Malicious users can crash the Dynamic VPN Configuration Protocol service (DVCP) by sending a malformed packet to the listener service on TCP port 4110. Watchguard Firebox firmware v5.x.x is vulnerable.

tags | denial of service, tcp, protocol
MD5 | 5c816d05c3c95fa2697fb6e8e2a0f072
snapgear.dos.txt
Posted May 5, 2002
Authored by Peter Grundl, Andreas Sandor

Several issues with the Snapgear Lite+ Firewall v1.5.3 and 1.5.4 allows malicious users to cause a Denial of Service situation, where part of or all of the Firewall would cease to function.

tags | denial of service
MD5 | f192d6894e5ac083f194d6174829b0ea
bea.urlparse.txt
Posted May 1, 2002
Authored by Peter Grundl

The Bea Weblogic server v4.1 sp2 on Windows 2000 incorrectly parses certain types of URL requests, resulting in the physical path being revealed, a Denial of Service situation and revealing of .jsp sourcecode.

tags | denial of service
systems | windows, 2k
MD5 | ce6e0994669595efc3d1b478056e15cb
microsoft.dts.txt
Posted Apr 25, 2002
Authored by Peter Grundl

Microsoft Distributed Transaction Coordinator DoS - A flaw in the way MSDTC handles malformed packets could allow an attacker to hang the service and exhaust resources on the Server. If an attacker sends 20200 null characters to the MSDTC service, which listens on TCP port 3372, server resources are allocated poorly. This attack can result in MSDTC.EXE spiking at 100% cpu usage, MSDTC refusing connections and kernel resources being exhausted. This was fixed with MS02-018, although the security bulletin does not mention this vulnerability.

tags | kernel, tcp
MD5 | e25b02dc80600cec84dac5e0cc8955a5
fscan.txt
Posted Apr 25, 2002
Authored by Peter Grundl

A format string bug in Foundstone Fscan v1.12 for Windows can result in a malicious service banner overwriting the stack and the EIP on the PC performing the scanning, if banner grabbing is enabled. Fix available here.

systems | windows
MD5 | 2de3733540166fe27765c7a79b8f3da9
coldfusion.path.txt
Posted Apr 23, 2002
Authored by Peter Grundl

Cold Fusion v5.0 on Windows 2000 w. IIS5 contains a bug because requests for certain DOS-devices are parsed by the isapi filter that handles .cfm and .dbm result in error messages containing the physical path to the web root.

tags | web, root
systems | windows, 2k
MD5 | ab82354a29f7f485d1ebded26772938b
sambar.fileparse.txt
Posted Apr 23, 2002
Authored by Peter Grundl

The Sambar Webserver v5.1p on Windows 2000 contains a flaw in the serverside URL parsing that allows malicious users to bypass serverside fileparsing and display the sourcecode of scripts. The same flaw could allow a malicious user to crash the web service. Example URL's included. Fix available here.

tags | web
systems | windows, 2k
MD5 | f9fe5efffd20541c774e9886e812f32c
win2k.lanman.txt
Posted Apr 23, 2002
Authored by Peter Grundl

Windows 2000 microsoft-ds Denial of Service - The default LANMAN registry settings on Windows 2000 could allow a malicious user, with access to TCP port 445 on your Windows 2000, to cause a Denial of Service on Windows 2000 server, advanced server, and processional with SP0, SP1, and SP2. An attack could be something as simple as sending a continuous stream of 10k null chars to TCP port 445.

tags | denial of service, registry, tcp
systems | windows, 2k
MD5 | f8e118359b7fdece4913db8854c58a09
iis.isapi.htr.txt
Posted Apr 11, 2002
Authored by Peter Grundl

Microsoft IIS 4.0 and 5.0 contains a buffer overrun condition in the isapi extension that handles .htr extensions that allows attackers to crash the service and/or execute arbitrary code on the server. A flaw in ism.dll which handles files with the .htr extension is the cause of this vulnerability. Microsoft advisory on this vulnerability here.

tags | overflow, arbitrary
MD5 | 2d97a07c43abc1df5f3d2f308ff61deb
iis.w3svc.dos.txt
Posted Apr 11, 2002
Authored by Peter Grundl

A flaw in internal object interaction allows malicious users to bring down Internet Information Server 4.0, 5.0 and 5.1 with FP2002. Frontpage contains URL parsers for dynamic components (shtml.exe/dll). If a malicious user issues a request for /_vti_bin/shtml.exe where the URL for the dynamic contents is replaced with a long URL, the submodule will filter out the URL, and return a null value to the web service URL parser, crashing IIS. Microsoft advisory on this vulnerability here.

tags | web
MD5 | 97a0cd377e72accff4d19c9cd39377bd
lotus-domino-dos.txt
Posted Feb 5, 2002
Authored by Peter Grundl

Lotus Domino Webserver prior to 5.0.9a on Windows 2000 contains two remote denial of service vulnerabilities which use up all 400 threads.

tags | remote, denial of service, vulnerability
systems | windows, 2k
MD5 | 8ecc8da929f0085edc8aa5cf1f1a5275
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