Vulnerabilities / Threats
9/4/2009
02:26 PM
Connect Directly
Google+
LinkedIn
Twitter
RSS
E-Mail
50%
50%

Microsoft Expands IIS Vulnerability Warning

Following up on a Security Advisory published earlier this week, Microsoft has added IIS 7.0 to the list of vulnerable configurations

Microsoft on Friday updated the Security Advisory it issued on Tuesday, expanding its warning about a vulnerability in its Internet Information Services (IIS) server software.

Based on additional proof-of-concept exploits that could allow denial-of-service attacks and on limited attempts to exploit the vulnerability, Microsoft now says that IIS 5.0, 5.1, 6.0, and 7.0 are vulnerable to a denial-of-service attacks.

This supersedes Microsoft's previous assertion that "IIS 7.0 (Windows Vista, Windows Server 2008) is not vulnerable."

In addition, users of IIS 5.0 are vulnerable to remote code execution if they allow anonymous FTP.

The IIS vulnerability is related to a stack overflow bug in the IIS FTP module. If an IIS installation allows anonymous FTP, a malicious user could log in and create a directory name so long that it created an overflow condition. A successful attempt to exploit this flaw allows the execution of code in the context of LocalSystem.

Microsoft is advising IIS users to turn off the FTP service unless its needed. It is also recommending that users configure their servers to prevent the creation of new directories and to deny anonymous users write privileges using the appropriate IIS settings.

Microsoft says that it plans to release five "critical" Security Bulletins on Tuesday, September 8, its regularly scheduled "patch day."

It's not clear whether the IIS flaw will be addressed, but given the circumstances under which the vulnerability was disclosed -- a public posting, without prior notification to Microsoft -- it's unlikely that Microsoft will have enough time to thoroughly test a fix for the problem.


InformationWeek Analytics has published an analysis of the current state of identity management. Download the report here (registration required).

Comment  | 
Print  | 
More Insights
Register for Dark Reading Newsletters
White Papers
Cartoon
Current Issue
Flash Poll
Video
Slideshows
Twitter Feed
Dark Reading - Bug Report
Bug Report
Enterprise Vulnerabilities
From DHS/US-CERT's National Vulnerability Database
CVE-2014-7896
Published: 2015-03-03
Multiple cross-site scripting (XSS) vulnerabilities in HP XP P9000 Command View Advanced Edition Software Online Help, as used in HP Device Manager 6.x through 8.x before 8.1.2-00, HP XP P9000 Tiered Storage Manager 6.x through 8.x before 8.1.2-00, HP XP P9000 Replication Manager 6.x and 7.x before ...

CVE-2014-9283
Published: 2015-03-03
The BestWebSoft Captcha plugin before 4.0.7 for WordPress allows remote attackers to bypass the CAPTCHA protection mechanism and obtain administrative access via unspecified vectors.

CVE-2014-9683
Published: 2015-03-03
Off-by-one error in the ecryptfs_decode_from_filename function in fs/ecryptfs/crypto.c in the eCryptfs subsystem in the Linux kernel before 3.18.2 allows local users to cause a denial of service (buffer overflow and system crash) or possibly gain privileges via a crafted filename.

CVE-2015-0890
Published: 2015-03-03
The BestWebSoft Google Captcha (aka reCAPTCHA) plugin before 1.13 for WordPress allows remote attackers to bypass the CAPTCHA protection mechanism and obtain administrative access via unspecified vectors.

CVE-2015-2168
Published: 2015-03-03
** REJECT ** DO NOT USE THIS CANDIDATE NUMBER. ConsultIDs: none. Reason: This candidate was withdrawn by its CNA. Further investigation showed that it was not a security issue in customer-controlled software. Notes: none.

Dark Reading Radio
Archived Dark Reading Radio
How can security professionals better engage with their peers, both in person and online? In this Dark Reading Radio show, we will talk to leaders at some of the security industry’s professional organizations about how security pros can get more involved – with their colleagues in the same industry, with their peers in other industries, and with the IT security community as a whole.