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Jul 29, 2021
UPDATE: PetitPotam NTLM Relay Attack
THE THREAT PetitPotam is a variant of the NTLM Relay attack discovered by security researcher Gilles Lionel. It is tracked as an authentication bypass vulnerability in Active Directory (Certificate Services); currently no CVE identifier has been assigned to this vulnerability. Proof of Concept (PoC) code released last week [1] relies on the Encrypting File System Remote (EFSRPC) protocol to…
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eSentire is The Authority in Managed Detection and Response Services, protecting the critical data and applications of 1000+ organizations in 70+ countries from known and unknown cyber threats. Founded in 2001, the company’s mission is to hunt, investigate and stop cyber threats before they become business disrupting events.
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Jul 12, 2021
Tecala and eSentire Partner to Protect Enterprises across APAC from Business-Disrupting Cyber Attacks
Sydney, 12 July, 2021 - Tecala, Australia’s award-winning technology services and IT consulting provider, today announced it has chosen eSentire, the global Authority in Managed Detection and Response (MDR) cybersecurity services, as their exclusive MDR solution provider in Australia and New Zealand. This partnership will enable Tecala to augment its cybersecurity practice and offer enterprises…
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Security advisories — Feb 26, 2019

AMD Processor Vulnerabilities Update - ID 004-03-2018

2 min read

On March 14, eSentire released a security advisory relating to vulnerabilities in AMD processors, reported by the Israeli security firm, CTS Labs 1. On March 21, AMD released a statement both acknowledging and downplaying the severity of the vulnerabilities. AMD also provided timelines on planned mitigations 2. eSentire Threat Intelligence maintains our original assessment that these vulnerabilities do not pose an immediate threat to customers. Should proof-of-concept code be released or exploitation of the vulnerabilities in the wild be observed, eSentire Threat Intelligence will reassess the severity of this threat.

What we’re doing about it

What you should do about it

Additional information

On March 13, CTS Labs published a whitepaper outlining 13 critical vulnerabilities discovered in AMD processors. These findings were unconfirmed by AMD until a full technical review could be completed. On March 21, AMD completed their review and released their findings 2.

The 13 reported vulnerabilities have been categorized into three groups by AMD according to the devices they affect.

In order to exploit the above vulnerabilities, a threat actor would require administrative access on the device and a high degree of technical knowledge.

If exploited, these vulnerabilities would allow threat actors to circumvent security controls, make changes that persist after a device reboot, install difficult to detect malware and access physical memory through the chipset.

AMD has not released security patches for these vulnerabilities but states that patches can be expected in the next few weeks. At this time, eSentire has not observed any of the released vulnerabilities being exploited in the wild.

[1] https://www.esentire.com/news-and-events/security-advisories/amd-processor-vulnerabilities/

[2] https://community.amd.com/community/amd-corporate/blog/2018/03/21/initial-amd-technical-assessment-of-cts-labs-research