Dark Reading is part of the Informa Tech Division of Informa PLC

This site is operated by a business or businesses owned by Informa PLC and all copyright resides with them.Informa PLC's registered office is 5 Howick Place, London SW1P 1WG. Registered in England and Wales. Number 8860726.

Risk

7/8/2008
05:35 PM
Connect Directly
Google+
LinkedIn
Twitter
RSS
E-Mail
50%
50%

Microsoft Patch Tuesday Brings Four Bulletins For Nine Flaws

Though a month without "critical" vulnerabilities and a low number of bulletins might suggest there's not much to worry about, researchers say Microsoft is downplaying the potential risks.

Microsoft on Tuesday released its security patches for July. These include four Security Bulletins that address nine vulnerabilities.

Microsoft rated each of the four Security Bulletins "important," which the company defines thus: "A vulnerability whose exploitation could result in compromise of the confidentiality, integrity, or availability of users' data, or of the integrity or availability of processing resources."

The bulletins include "Vulnerabilities in Microsoft SQL Server Could Allow Elevation of Privilege" (MS08-040), "Vulnerability in Windows Explorer Could Allow Remote Code Execution" (MS08-038), "Vulnerabilities in DNS Could Allow Spoofing" (MS08-037), and "Vulnerabilities in Outlook Web Access for Exchange Server Could Allow Elevation of Privilege" (MS08-039).

While the absence of any vulnerabilities with a "critical" rating and the relatively low number of bulletins might suggest there's not much to worry about this month, Eric Schultze, CTO of Shavlik Technologies, believes Microsoft is downplaying the potential risks.

"If you consider this a light month, then Microsoft has done its job," Schultze said. "By [rating the vulnerabilities 'important,'] they hoped to lessen their visibility. It's an interesting month because there's nothing very earth-shattering but there still are important things to pay attention to."

Chief among them are the BIND DNS vulnerabilities, which affect not only Windows but Linux and Unix systems too, including Apple's Unix-based Mac OS X.

Debian, a Linux vendor, has already posted security advisories about the issue.

On Tuesday, US CERT issued a Vulnerability Note indicating that the DNS flaws affect more than 80 vendors. The Internet Systems Consortium (ISC) released several fixes for BIND9 to address the issue.

Wolfgang Kandek, CTO of Qualys, warned that the DNS vulnerabilities could be used to send an Internet user to the wrong site and that there might be no way to recognize the deception without checking the site's certificate, which few bother doing. The technique is known as DNS Poisoning.

In an e-mailed statement, Tyler Reguly, a security engineer from nCircle, elaborated on the risks of DNS poisoning. "The two DNS vulnerabilities are very serious because there is potential to poison both the DNS Server and Client," he said. "If an attacker poisons the cache of a client by spoofing a response, it only affects a single computer, but if they poison the DNS Server, they could potentially provide spoofed responses to all clients utilizing that nameserver. By using this approach an attacker could potentially compromise a corporation's entire DNS infrastructure under the right circumstances."

Schultze said that while the "important" rating may be fair for the DNS flaws themselves, a DNS poisoning attack is usually the prelude to exposure to more serious malware, which might merit a "critical" rating. He added that both the Windows Explorer and SQL server vulnerabilities mention "remote code execution," which usually is considered "critical." He said Microsoft probably softened the severity rating because exploiting the vulnerabilities is difficult.

Amol Sarwate, manager of vulnerability labs at Qualys, said he knew of two vulnerabilities that Microsoft left unpatched: CVE-2008-1436 (Windows privilege elevation vulnerability), CVE-2008-2463 (Microsoft Office Access Snapshot Viewer ActiveX control vulnerability).

Microsoft on Monday released a Security Advisory about the Snapshot Viewer flaw. It published an advisory on the Windows privilege elevation issue in April.

Comment  | 
Print  | 
More Insights
Comments
Threaded  |  Newest First  |  Oldest First
Register for Dark Reading Newsletters
White Papers
Video
Cartoon Contest
Write a Caption, Win a Starbucks Card! Click Here
Latest Comment: Our Endpoint Protection system is a little outdated... 
Current Issue
The Year in Security: 2019
This Tech Digest provides a wrap up and overview of the year's top cybersecurity news stories. It was a year of new twists on old threats, with fears of another WannaCry-type worm and of a possible botnet army of Wi-Fi routers. But 2019 also underscored the risk of firmware and trusted security tools harboring dangerous holes that cybercriminals and nation-state hackers could readily abuse. Read more.
Flash Poll
Rethinking Enterprise Data Defense
Rethinking Enterprise Data Defense
Frustrated with recurring intrusions and breaches, cybersecurity professionals are questioning some of the industrys conventional wisdom. Heres a look at what theyre thinking about.
Twitter Feed
Dark Reading - Bug Report
Bug Report
Enterprise Vulnerabilities
From DHS/US-CERT's National Vulnerability Database
CVE-2019-10694
PUBLISHED: 2019-12-12
The express install, which is the suggested way to install Puppet Enterprise, gives the user a URL at the end of the install to set the admin password. If they do not use that URL, there is an overlooked default password for the admin user. This was resolved in Puppet Enterprise 2019.0.3 and 2018.1....
CVE-2019-10695
PUBLISHED: 2019-12-12
When using the cd4pe::root_configuration task to configure a Continuous Delivery for PE installation, the root user�s username and password were exposed in the job�s Job Details pane in the PE console. These issues have been resolved in version 1.2.1 of the ...
CVE-2019-5085
PUBLISHED: 2019-12-12
An exploitable code execution vulnerability exists in the DICOM packet-parsing functionality of LEADTOOLS libltdic.so, version 20.0.2019.3.15. A specially crafted packet can cause an integer overflow, resulting in heap corruption. An attacker can send a packet to trigger this vulnerability.
CVE-2019-5090
PUBLISHED: 2019-12-12
An exploitable information disclosure vulnerability exists in the DICOM packet-parsing functionality of LEADTOOLS libltdic.so, version 20.0.2019.3.15. A specially crafted packet can cause an out-of-bounds read, resulting in information disclosure. An attacker can send a packet to trigger this vulner...
CVE-2019-5091
PUBLISHED: 2019-12-12
An exploitable denial-of-service vulnerability exists in the Dicom-packet parsing functionality of LEADTOOLS libltdic.so version 20.0.2019.3.15. A specially crafted packet can cause an infinite loop, resulting in a denial of service. An attacker can send a packet to trigger this vulnerability.