bugtraq - RE: EEYE: Microsoft ASN.1 Library Length Overflow Heap Corruption

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <7BE3FADD73E3734AA95BCA7AE4802F3038C11A@hermes.eCompany.gov>
Date: Tue, 10 Feb 2004 11:44:43 -0800
From: "Marc Maiffret" <mmaiffret@...e.com>
To: "Joe Blatz" <sd_wireless@...oo.com>, <BUGTRAQ@...urityfocus.com>
Subject: RE: EEYE: Microsoft ASN.1 Library Length Overflow Heap Corruption


This attack can be performed through various encryption systems such as
Kerberos and almost anything using CERTs... I am not sure about
Microsofts wording in their advisory.

Signed,
Marc Maiffret
Chief Hacking Officer
eEye Digital Security
T.949.349.9062
F.949.349.9538
http://eEye.com/Retina - Network Security Scanner
http://eEye.com/Iris - Network Traffic Analyzer
http://eEye.com/SecureIIS - Stop known and unknown IIS vulnerabilities 

Important Notice: This email is confidential, may be legally privileged,
and is for the intended recipient only. Access, disclosure, copying,
distribution, or reliance on any of it by anyone else is prohibited and
may be a criminal offense.  Please delete if obtained in error and email
confirmation to the sender. 

| -----Original Message-----
| From: Joe Blatz [mailto:sd_wireless@...oo.com] 
| Sent: Tuesday, February 10, 2004 11:36 AM
| To: Marc Maiffret; BUGTRAQ@...urityfocus.com
| Subject: RE: EEYE: Microsoft ASN.1 Library Length Overflow 
| Heap Corruption
| 
| In the security bulletin published by MS it states, "In the 
| most likely exploitable scenario, an attacker would have to 
| have direct access to the user's network."
| 
| The bulletin published by eEye states "...applications that 
| make use of certificates (SSL, digitally-signed e-mail, 
| signed ActiveX controls, etc.) [are affected]".
| 
| I see a big disconnect there. Can you address this?
| Also, how would this potentially affect sites that are using 
| an MS VPN solution?
| 
| 
| > -----Original Message-----
| > From: Marc Maiffret [mailto:mmaiffret@...e.com]
| > Sent: Tuesday, February 10, 2004 10:20 AM
| > To: BUGTRAQ@...urityfocus.com
| > Subject: EEYE: Microsoft ASN.1 Library Length Overflow Heap 
| Corruption
| > 
| > Microsoft ASN.1 Library Length Overflow Heap Corruption
| > 
| > Release Date:
| > February 10, 2004
| > 
| > Date Reported:
| > July 25, 2003
| > 
| > Severity:
| > High (Remote Code Execution)
| > 
| > Systems Affected:
| > Microsoft Windows NT 4.0 (all versions) Microsoft Windows 2000 (SP3 
| > and earlier) Microsoft Windows XP (all versions)
| > 
| > Software Affected:
| > Microsoft Internet Explorer
| > Microsoft Outlook
| > Microsoft Outlook Express
| > Third-party applications that use certificates
| > 
| > Services Affected:
| > Kerberos (UDP/88)
| > Microsoft IIS using SSL
| > NTLMv2 authentication (TCP/135, 139, 445)
| 
| __________________________________
| Do you Yahoo!?
| Yahoo! Finance: Get your refund fast by filing online.
| http://taxes.yahoo.com/filing.html
|