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Cisco Patches Vital Vulnerability in Enterprise Communication Options

By Ionut Arghire on July 08, 2022

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Cisco this week introduced the supply of patches for a important vulnerability within the Cisco Expressway sequence and TelePresence Video Communication Server (VCS) merchandise that might enable an attacker to overwrite recordsdata on the underlying working system with root privileges.

In response to Cisco, the vulnerability impacts Expressway Management (Expressway-C) and Expressway Edge (Expressway-E) units, which are supposed to allow distant collaboration for each cellular customers and teleworkers.

“A number of vulnerabilities within the API and within the web-based administration interface of Cisco Expressway Collection and Cisco TelePresence Video Communication Server (VCS) may enable a distant attacker to overwrite arbitrary recordsdata or conduct null byte poisoning assaults on an affected system,” Cisco notes in an advisory.

Tracked as CVE-2022-20812 (CVSS rating of 9.0), the critical-severity vulnerability may enable an authenticated assault that has administrator read-write privileges to overwrite recordsdata on the underlying working system remotely, with the privileges of the basis consumer.

The difficulty exists as a result of user-supplied command arguments are usually not sufficiently validated, permitting an attacker to submit crafted enter to the affected command.

Cisco additionally resolved a high-severity bug impacting the enterprise communication options, which may enable an unauthenticated, distant attacker to entry delicate information.

Tracked as CVE-2022-20813, the difficulty exists as a result of certificates aren’t correctly validated, thus permitting an attacker to arrange a man-in-the-middle assault and “intercept the visitors between units, after which utilizing a crafted certificates to impersonate the endpoint.” The attacker may then view the intercepted visitors in clear textual content and will even modify the contents of the visitors.

Each points had been addressed with Cisco Expressway sequence and TelePresence VCS launch 14.0.7 and Cisco encourages all prospects to replace as quickly as doable.

This week, Cisco additionally introduced patches for a high-severity vulnerability in Sensible Software program Supervisor On-Prem (SSM On-Prem), which may enable a distant, authenticated attacker to trigger a denial of service (DoS) situation. Tracked as CVE-2022-20808, the vulnerability was addressed in Cisco SSM On-Prem launch 8-202112.

“This vulnerability is because of incorrect dealing with of a number of simultaneous system registrations on Cisco SSM On-Prem. An attacker may exploit this vulnerability by sending a number of system registration requests to Cisco SSM On-Prem,” the tech large explains.

Cisco says it’s not conscious of any of those vulnerabilities being exploited in assaults. Additional info on the newest Cisco patches could be discovered on the corporate’s safety portal.

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