Vulnerability identifier: #VU68966

Vulnerability risk: Medium

CVSSv3.1: 5.5 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-20868

CWE-ID: CWE-321

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Cisco AsyncOS for Cisco Email Security Appliance
Server applications / IDS/IPS systems, Firewalls and proxy servers
Cisco AsyncOS for Web Security Appliances
Server applications / IDS/IPS systems, Firewalls and proxy servers

Vendor:

Description

The vulnerability allows a remote user to escalate privileges on the device.

The vulnerability exists due to usage of a hard-coded value to encrypt a token that is used for certain API calls. A remote user can send a specially crafted HTTP request to the next-generation UI management interface, impersonate another valid user and execute commands with the privileges of that user account.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

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External links
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-esasmawsa-vulns-YRuSW5mD
http://bst.cloudapps.cisco.com/bugsearch/bug/CSCwc12183
http://bst.cloudapps.cisco.com/bugsearch/bug/CSCwc12186

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.