Home Internet Security VMware fixes authentication bypass in Carbon Black App Control

VMware fixes authentication bypass in Carbon Black App Control

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VMware Carbon Black App Management has been up to date this week to repair a critical-severity vulnerability that permits entry to the server with out authentication.

Carbon Black App Management is designed for company environments, to harden the safety of methods each outdated and new, and shield them towards unauthorized modifications, similar to these generated by malware or zero-day exploits.

Path to unlocking important methods

Tracked as CVE-2021-21998, the vulnerability is an authentication bypass affecting VMware Carbon Black App Management (AppC) variations 8.0, 8.1, 8.5 earlier than 8.5.8, and eight.6 earlier than 8.6.2.

Risk actors with entry to the AppC administration server may exploit the bug to realize administrative privileges with out the necessity to authenticate, informs the security advisory from VMware.

Given the function of the product in a company community, taking management of the AppC administration server paves the best way to compromising important methods.

Relying on the setting, an attacker may leverage the vulnerability to focus on something from point-of-sales (PoS) to industrial management methods.

The severity rating for the vulnerability has been calculated to 9.4, making it a important subject that customers and directors ought to prioritize.

There are not any workarounds out there, and fixing the difficulty is feasible by putting in the hotfix out there for AppC 8.1.x and eight.0.x, or updating to model 8.6.2 or 8.5.8 of the product.

Product Model Operating On CVE Identifier CVSSv3 Severity Mounted Model Workarounds Further Documentation

AppC

8.6.x

Home windows

CVE-2021-21998

None

None

AppC

8.5.x

Home windows

CVE-2021-21998

None

None

AppC

8.1.x, 8.0.x

Home windows

CVE-2021-21998

None

None

Operating code with elevated privileges

Aside from fixing CVE-2021-21998, VMware additionally patched an area privilege escalation bug affecting VMware Instruments for Home windows, VMware Distant Console for Home windows (VMRC for Home windows), and VMware App Volumes.

The flaw is recognized as CVE-2021-21999. It doesn’t at the moment have a severity rating from the Nationwide Institute of Requirements and Expertise (NIST) however VMware evaluated it at 7.8 (excessive severity).

“An attacker with regular entry to a digital machine might exploit this subject by inserting a malicious file renamed as `openssl.cnf’ in an unrestricted listing which might enable code to be executed with elevated privileges,” – VMware

Credited for locating and reporting CVE-2021-21999 are Zeeshan Shaikh from NotSoSecure working with Development Micro Zero Day Initiative (ZDI) and Hou JingYi of Qihoo 360.

CISA has additionally launched an advisory, to encourage customers and community directors to verify the newest safety briefs from VMware and apply the updates.





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