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Cisco Patches Extreme Vulnerabilities in Nexus Dashboard

By Ionut Arghire on July 21, 2022

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Cisco on Wednesday introduced the provision of patches for a number of vulnerabilities in Nexus Dashboard, together with a critical-severity subject that would result in the execution of arbitrary instructions.

The Nexus Dashboard is an information heart administration console that gives directors and operators with fast entry to required assets throughout companies and functions.

Probably the most extreme of the newly resolved vulnerabilities affecting the console is CVE-2022-20857 (CVSS rating of 9.8), which may permit a distant, unauthenticated attacker to entry a particular API and execute arbitrary instructions.

“The vulnerability is because of inadequate entry controls for a particular API. An attacker may exploit this vulnerability by sending crafted HTTP requests to the affected API. A profitable exploit may permit the attacker to execute arbitrary instructions as the foundation person in any pod on a node,” Cisco explains.

In its advisory, Cisco additionally particulars CVE-2022-20861 and CVE-2022-20858, two high-severity safety bugs in Nexus Dashboard that would result in cross-site request forgery (CSRF) assaults and to the importing of malicious container photographs, respectively.

The primary of the bugs exists as a result of the online UI on affected units doesn’t have enough CSRF protections. An attacker who convinces an authenticated administrator to click on on a malicious hyperlink could carry out actions on a susceptible machine, with administrator privileges.

The second subject exists as a result of a service that manages container photographs doesn’t have enough entry controls, thus permitting an attacker to open a TCP connection to the affected service and obtain container photographs and add malicious photographs that will run after a tool reboot.

All three vulnerabilities had been resolved with the discharge of Nexus Dashboard 2.2(1e). Customers of Nexus Dashboard 1.1, 2.0, and a pair of.1 are suggested to improve to the mounted launch as quickly as potential.

This week, Cisco additionally resolved a high-severity safety subject within the SSL/TLS implementation of Nexus Dashboard, which may permit a distant, unauthenticated attacker to tamper with the communication with related controllers, or entry delicate info.

Due to improper validation of SSL server certificates when Nexus Dashboard connects to Software Coverage Infrastructure Controller (APIC), Cloud APIC, or Nexus Dashboard Cloth Controller, an attacker could use man-in-the-middle methods to intercept visitors between the machine and the controllers, after which impersonate the controllers.

“A profitable exploit may permit the attacker to change communications between units or view delicate info, together with Administrator credentials for these controllers,” Cisco explains.

Tracked as CVE-2022-20860, the vulnerability has been resolved with the discharge of Nexus Dashboard 2.2(1h).

Cisco says it isn’t conscious of any of those vulnerabilities being exploited in assaults.

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