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.

Vulnerabilities / Threats

Apple Patches Multiple Major Security Flaws

New security updates cross all Apple platforms.

Apple yesterday released security updates to deal with serious vulnerabilities in multiple products including a handful of "critical" flaws that should be patched immediately.

According to US-CERT, the patches released cover Safari 12.0.1, iCloud for Windows 7.8, iTunes 12.9.1, watchOS 5.1, iOS 12.1, tvOS 12.1, macOS Mojave 10.14.1, macOS Security Update 2018-001 High Sierra, and macOS Security Update 2018-005 Sierra. While the patched vulnerabilities are present in a wide variety of products, according to security researchers at Semmle, at least six of the critical vulnerabilities are within the XNU kernel that sits at the core of all current Apple operating systems.

In a post on the Semmle blog, researcher Kevin Backhouse described how he discovered the vulnerabilities using variant analysis to search for patterns in code. In an interview with Dark Reading, Oege de Moor, CEO and co-founder of Semmle, explained that the bugs fall into two categories: "The ICMP packet handler vulnerability is a classical heap buffer overflow. The second second category is the NFS client, and it's responsible for  five independent, but highly related, vulnerabilities."

de Moor says that Backhouse found the first of the NFS vulnerabilities through the sort of general code exploration common to threat researchers. Backhouse then used the discovered code to feed a variant analysis engine that ran on other operating systems and found the related vulnerabilities.

"In this case, it's a critical vulnerability, allowing an attacker to mount a malicious NFS volume and gain kernel-level privileges," says de Moor.

According to Semmle's findings, those kernel privileges could allow a malicious actor to read, write, and delete files on disk and in memory, install new applications, or wipe and reset the device to factory settings.

The five related NFS vulnerabilities were patched in macOS with this latest round of updates. The ICMP vulnerability doesn't grant the same depth of privilege, but it has a broader footprint and the possibility of easier exploitation.

Backhouse found a vulnerability in the ICMP packet-handling module in the XNU kernel. de Moor says the bug could be exploited through a classic buffer overflow technique and could allow an attacker to cause affected systems to reboot at arbitrary times. It was remediated in the latest releases of MacOS Sierra, High Sierra, and Mojave; and in iOS 12. It was not, de Moor says, patched for iOS 11, so the roughly 40% of iOS devices that have not (or cannot) upgrade to the latest operating system version are still vulnerable.

Team Effort

While Backhouse was responsible for finding nearly half of the vulnerabilities patched in the latest releases, other researchers also contributed to the vulnerability count.

Jake Massimo, of the University of London, discovered a flaw in the way that Apple implemented a check for prime numbers in its corecrypto module. In his blog post announcing the flaw, Massimo describes how the function can be spoofed into labeling a composite (or non-prime) number as prime, and through doing so render an encryption algorithm far more vulnerable to cracking. Massimo, with colleagues, has issued a full paper on the flaw, with details about the algorithm used to determine whether a number is prime and the effects of getting it wrong.

Apple includes details on all of the new updates on the Apple support site.

Related Content:

 

Black Hat Europe returns to London Dec 3-6 2018  with hands-on technical Trainings, cutting-edge Briefings, Arsenal open-source tool demonstrations, top-tier security solutions and service providers in the Business Hall. Click for information on the conference and to register.

Curtis Franklin Jr. is Senior Editor at Dark Reading. In this role he focuses on product and technology coverage for the publication. In addition he works on audio and video programming for Dark Reading and contributes to activities at Interop ITX, Black Hat, INsecurity, and ... View Full Bio
 

Recommended Reading:

Comment  | 
Print  | 
More Insights
Comments
Newest First  |  Oldest First  |  Threaded View
Joe Stanganelli
50%
50%
Joe Stanganelli,
User Rank: Ninja
10/31/2018 | 11:17:22 PM
Security only, or security-plus?
The important question: Are these STRICTLY security-related updates? Or did they throw in feature changes too?

Because not only are users tired of that garbage, but it's precisely why they're patch-phobic and update-phobic to begin with! (My lengthier rant on the subject for a sister site here: securitynow.com/author.asp?section_id=706&doc_id=746324 )
Cloud Security Startup Lightspin Emerges From Stealth
Kelly Sheridan, Staff Editor, Dark Reading,  11/24/2020
Look Beyond the 'Big 5' in Cyberattacks
Robert Lemos, Contributing Writer,  11/25/2020
Why Vulnerable Code Is Shipped Knowingly
Chris Eng, Chief Research Officer, Veracode,  11/30/2020
Register for Dark Reading Newsletters
White Papers
Video
Cartoon Contest
Write a Caption, Win an Amazon Gift Card! Click Here
Latest Comment: We are really excited about our new two tone authentication system!
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
Twitter Feed
Dark Reading - Bug Report
Bug Report
Enterprise Vulnerabilities
From DHS/US-CERT's National Vulnerability Database
CVE-2020-4126
PUBLISHED: 2020-12-01
HCL iNotes is susceptible to a sensitive cookie exposure vulnerability. This can allow an unauthenticated remote attacker to capture the cookie by intercepting its transmission within an http session. Fixes are available in HCL Domino and iNotes versions 10.0.1 FP6 and 11.0.1 FP2 and later.
CVE-2020-4129
PUBLISHED: 2020-12-01
HCL Domino is susceptible to a lockout policy bypass vulnerability in the LDAP service. An unauthenticated attacker could use this vulnerability to mount a brute force attack against the LDAP service. Fixes are available in HCL Domino versions 9.0.1 FP10 IF6, 10.0.1 FP6 and 11.0.1 FP1 and later.
CVE-2020-9115
PUBLISHED: 2020-12-01
ManageOne versions 6.5.1.1.B010, 6.5.1.1.B020, 6.5.1.1.B030, 6.5.1.1.B040, ,6.5.1.1.B050, 8.0.0 and 8.0.1 have a command injection vulnerability. An attacker with high privileges may exploit this vulnerability through some operations on the plug-in component. Due to insufficient input validation of ...
CVE-2020-9116
PUBLISHED: 2020-12-01
Huawei FusionCompute versions 6.5.1 and 8.0.0 have a command injection vulnerability. An authenticated, remote attacker can craft specific request to exploit this vulnerability. Due to insufficient verification, this could be exploited to cause the attackers to obtain higher privilege.
CVE-2020-14193
PUBLISHED: 2020-11-30
Affected versions of Automation for Jira - Server allowed remote attackers to read and render files as mustache templates in files inside the WEB-INF/classes & <jira-installation>/jira/bin directories via a template injection vulnerability in Jira smart values using mustache partials. The ...