Risk
11/24/2010
12:18 PM
Connect Directly
RSS
E-Mail
50%
50%

Most Microsoft DLL Hijacking Vulnerabilities Remain Unpatched

Three months after they were first disclosed, only 15% of known bugs have been patched, reports ACROS Security.

Strategic Security Survey: Global Threat, Local Pain
Strategic Security Survey: Global Threat, Local Pain
(click image for larger view and for full slideshow)

Only 15% of publicly known DLL hijacking vulnerabilities have been fixed, according to Slovenian security firm ACROS Security.

Nearly 100 days ago, the vulnerabilities -- also known as binary planting, DLL preloading, and insecure library loading -- as well as related EXE loading bugs were first disclosed. Attackers can exploit the vulnerabilities, which stem from the insecure manner in which Microsoft Windows performs file location searches, to run arbitrary code.

But to date, according to vulnerability information service Secunia, only 23 out of 151 DLL planting bugs have been fixed. On the upside, however, seven of the eight known EXE loading vulnerabilities have been patched.

"Interestingly, after some web browser vendors' initial quick response (Firefox, Opera, Safari), most of the fixes were done by smaller vendors, perhaps predominantly in open source software," said Mitja Kolsek, the CEO and CTO of ACROS, in a blog post.

But what accounts for the slow patching response by larger vendors to known vulnerabilities, given that they've had more than three months to fix the relevant flaws in their software? "In general, large vendors seem to be very slow in patching -- which is often rationalized by extensive testing they need to perform, but may also be due to their business models not providing sufficient rewards for security fixing," said Kolsek.

Unfortunately, beyond Secunia's list of vulnerable applications, which is based on security bulletins issued by vendors, there's also "shadow list" of vendors and developers that have yet to acknowledge DLL vulnerabilities. ACROS said it's created a dedicated Binary Planting website for tracking these unknown or orphaned vulnerabilities.

From December 2008 to July 2010, ACROS counted at least 66 DLL planting bugs, only 6% of which have been fixed, and 28 EXE planting bugs, none of which have been fixed. Kolsek said that "it is unknown whether the affected applications' authors are aware [of] these vulnerabilities or not."

Comment  | 
Print  | 
More Insights
Register for Dark Reading Newsletters
White Papers
Flash Poll
Current Issue
Cartoon
Video
Slideshows
Twitter Feed
Dark Reading - Bug Report
Bug Report
Enterprise Vulnerabilities
From DHS/US-CERT's National Vulnerability Database
CVE-2014-1544
Published: 2014-07-23
Use-after-free vulnerability in the CERT_DestroyCertificate function in libnss3.so in Mozilla Network Security Services (NSS) 3.x, as used in Firefox before 31.0, Firefox ESR 24.x before 24.7, and Thunderbird before 24.7, allows remote attackers to execute arbitrary code via vectors that trigger cer...

CVE-2014-1547
Published: 2014-07-23
Multiple unspecified vulnerabilities in the browser engine in Mozilla Firefox before 31.0, Firefox ESR 24.x before 24.7, and Thunderbird before 24.7 allow remote attackers to cause a denial of service (memory corruption and application crash) or possibly execute arbitrary code via unknown vectors.

CVE-2014-1548
Published: 2014-07-23
Multiple unspecified vulnerabilities in the browser engine in Mozilla Firefox before 31.0 and Thunderbird before 31.0 allow remote attackers to cause a denial of service (memory corruption and application crash) or possibly execute arbitrary code via unknown vectors.

CVE-2014-1549
Published: 2014-07-23
The mozilla::dom::AudioBufferSourceNodeEngine::CopyFromInputBuffer function in Mozilla Firefox before 31.0 and Thunderbird before 31.0 does not properly allocate Web Audio buffer memory, which allows remote attackers to execute arbitrary code or cause a denial of service (buffer overflow and applica...

CVE-2014-1550
Published: 2014-07-23
Use-after-free vulnerability in the MediaInputPort class in Mozilla Firefox before 31.0 and Thunderbird before 31.0 allows remote attackers to execute arbitrary code or cause a denial of service (heap memory corruption) by leveraging incorrect Web Audio control-message ordering.

Best of the Web
Dark Reading Radio
Archived Dark Reading Radio
Sara Peters hosts a conversation on Botnets and those who fight them.