VMSA-2018-0024

VMSA-2018-0024 – AirWatch Console Vulnerability

VMware has released a new security advisory VMSA-2018-0024: VMware Workspace ONE Unified Endpoint Management Console (AirWatch Console) update resolves SAML authentication bypass vulnerability.

This advisory documents the remediation of one critical issue: VMware Workspace ONE Unified Endpoint Management Console (AirWatch Console) contains a SAML authentication bypass vulnerability which can be leveraged during device enrollment. This vulnerability may allow for a malicious actor to impersonate an authorized SAML session if certificate-based authentication is enabled. If certificate-based authentication is not enabled the outcome of exploitation is limited to an information disclosure (Important Severity).

The Common Vulnerabilities and Exposures project has assigned the identifier CVE-2018-6979 to VMSA-2018-0019 issue.

VMSA-2018-0024 – Affected Products and Resolutions

AirWatch Console 9.7.x – update to version 9.7.0.3 or above
AirWatch Console 9.6.x – update to version 9.6.0.7 or above
AirWatch Console 9.5.x – update to version 9.5.0.16 or above
AirWatch Console 9.4.x – update to version 9.4.0.22 or above
AirWatch Console 9.3.x – update to version 9.3.0.25 or above
AirWatch Console 9.2.x – update to version 9.2.3.27 or above
AirWatch Console 9.1.x – update to version 9.1.5.6 or above

As per VMware KB, if patching your environment is not feasible in a timely manner, you can take mitigation steps by disabling SAML authentication for enrollment located under System > Enterprise Integration > Directory Services.

You can check reports on other VMware vulnerabilities in my page dedicated to Security Advisories.

VMware Patches for Spectre

VMSA-2018-0012 – Speculative Store Bypass – SpectreNG

Not long after the first release of Meltdown and Spectre vulnerabilities, Google and Microsoft researchers independently reported two other variants of the modern processors bugs: a new subclass of speculative execution side channel vulnerabilities known as Speculative Store Bypass (SSB, previously known as SpectreNG – variant 4) has been assigned CVE-2018-3639; another Meltdown variation, rogue system register read (also called variant 3a) has been assigned CVE-2018-3640.

Among affected processors we find a wide range of chipsets: Intel and AMD x86, IBM POWER 8 and 9, and ARM CPUs.

Catalin Cimpanu wrote for Bleeping Computer:

Variant 3a is a variation of the Meltdown flaw, while Variant 4 is a new Spectre-like attack. The most important of these two is Variant 4. Both bugs occur for the same reason – speculative execution – a feature found in all modern CPUs that has the role of improving performance by computing operations in advance and later discarding unneeded data.

The difference is that Variant 4 affects a different part of the speculative execution process —the data inside the “store buffer” inside a CPU’s cache.

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