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.

Endpoint Security

12/18/2019
04:45 PM
Larry Loeb
Larry Loeb
Larry Loeb
50%
50%

RST Gets Fixed

Peleg Hadar of SaveBreach Labs has posted about the vulnerability he found in Intel's Rapid Storage Technology Service.

Peleg Hadar of SaveBreach Labs has posted about the vulnerability he found in Intel's Rapid Storage Technology Service (CVE-2019-14568). Intel has released a patch for the bug, and credits Hadar for its discovery in the security advisory that accompanies it.

Intel Rapid Storage Technology (RST) is a Windows-based application providing "improved performance and reliability for systems equipped with SATA disks for desktop, mobile, and server platforms." It is widely used with Intel chipsets.

Hadar first notified Intel about the situation in July of this year. He had noticed that when it was started up "IAStorDataMgrSvc.exe" tried to load 4 DLL files that were not present into its own directory. Once the service had been loaded, it would load Intel's ISDI2.dll library (Intel Storage Driver Interface Dynamic Library). That library will use "LoadLibraryA" in two places in order to load the DLL files.

He further noted that the procedure would actually load, if it was found, only one of the "Ioctl.dll" files that it was looking for. Once it loaded one of them successfully it would not try to load any of the rest.

He says that, "The root cause of this vulnerability is that no signature validation is made against the DLL files which the service tries to load (i.e., calling the WinVerifyTrust function)." The upshot of this is an attacker can implant arbitrary DLL files and the service will load them.

Because it will load the implant without any questions, the service will load the same malicious code each time it is restarted. This gives persistence to any DLL-based attack.

Now, there is still a bar to using this attack vector. Notice how Intel states what the problem is as, "Improper permissions in the executable for Intel(R) RST before version 17.7.0.1006 may allow an authenticated user to potentially enable escalation of privilege via local access."

You need to be an authenticated user with local access before this attack can be carried out. In fact, Hadar says that," Note: In order to exploit this vulnerability the attacker needs to have Administrator privileges." Perhaps he is considering that the attacker needs to implant the DLL into the correct directory.

In any case, this was assigned a medium vulnerability score in the CVE.

The release of the mitigation by Intel was almost held up for an additional month, according to Hadar. The timeline he posted says:

"Dec 4th, 2019 - Intel asked to delay the public disclosure until January 14th, 2020 in order to allow their business partners sufficient time to integrate the fix into their products.

Dec 10th, 2019 - Intel informed us that they managed to work out mitigation details with the business partner that had requested delay of the disclosure to January. As a result, their advisory was published December 10th, 2019."

Sometimes, things do work out.

— Larry Loeb has written for many of the last century's major "dead tree" computer magazines, having been, among other things, a consulting editor for BYTE magazine and senior editor for the launch of WebWeek.

Comment  | 
Print  | 
More Insights
Comments
Oldest First  |  Newest First  |  Threaded View
Commentary
How SolarWinds Busted Up Our Assumptions About Code Signing
Dr. Jethro Beekman, Technical Director,  3/3/2021
News
'ObliqueRAT' Now Hides Behind Images on Compromised Websites
Jai Vijayan, Contributing Writer,  3/2/2021
News
Attackers Turn Struggling Software Projects Into Trojan Horses
Robert Lemos, Contributing Writer,  2/26/2021
Register for Dark Reading Newsletters
White Papers
Video
Cartoon Contest
Write a Caption, Win an Amazon Gift Card! Click Here
Latest Comment: George has not accepted that the technology age has come to an end.
Current Issue
2021 Top Enterprise IT Trends
We've identified the key trends that are poised to impact the IT landscape in 2021. Find out why they're important and how they will affect you today!
Flash Poll
How Enterprises are Developing Secure Applications
How Enterprises are Developing Secure Applications
Recent breaches of third-party apps are driving many organizations to think harder about the security of their off-the-shelf software as they continue to move left in secure software development practices.
Twitter Feed
Dark Reading - Bug Report
Bug Report
Enterprise Vulnerabilities
From DHS/US-CERT's National Vulnerability Database
CVE-2021-23351
PUBLISHED: 2021-03-08
The package github.com/pires/go-proxyproto before 0.5.0 are vulnerable to Denial of Service (DoS) via the parseVersion1() function. The reader in this package is a default bufio.Reader wrapping a net.Conn. It will read from the connection until it finds a newline. Since no limits are implemented in ...
CVE-2009-20001
PUBLISHED: 2021-03-07
An issue was discovered in MantisBT before 2.24.5. It associates a unique cookie string with each user. This string is not reset upon logout (i.e., the user session is still considered valid and active), allowing an attacker who somehow gained access to a user's cookie to login as them.
CVE-2020-28466
PUBLISHED: 2021-03-07
This affects all versions of package github.com/nats-io/nats-server/server. Untrusted accounts are able to crash the server using configs that represent a service export/import cycles. Disclaimer from the maintainers: Running a NATS service which is exposed to untrusted users presents a heightened r...
CVE-2021-27364
PUBLISHED: 2021-03-07
An issue was discovered in the Linux kernel through 5.11.3. drivers/scsi/scsi_transport_iscsi.c is adversely affected by the ability of an unprivileged user to craft Netlink messages.
CVE-2021-27365
PUBLISHED: 2021-03-07
An issue was discovered in the Linux kernel through 5.11.3. Certain iSCSI data structures do not have appropriate length constraints or checks, and can exceed the PAGE_SIZE value. An unprivileged user can send a Netlink message that is associated with iSCSI, and has a length up to the maximum length...