12 January 2023
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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2023.0178 Cisco CX Cloud Agent Privilege Escalation Vulnerabilities 12 January 2023 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Cisco CX Cloud Agent Publisher: Cisco Systems Operating System: Cisco Resolution: Patch/Upgrade CVE Names: CVE-2023-20044 CVE-2023-20043 Original Bulletin: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cxagent-gOq9QjqZ Comment: CVSS (Max): 6.7 CVE-2023-20044 (CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H) CVSS Source: Cisco Systems Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H - --------------------------BEGIN INCLUDED TEXT-------------------- Cisco CX Cloud Agent Privilege Escalation Vulnerabilities Priority: Medium Advisory ID: cisco-sa-cxagent-gOq9QjqZ First Published: 2023 January 11 16:00 GMT Version 1.0: Final Workarounds: No workarounds available Cisco Bug IDs: CSCwa73699 CSCwd51828 CVE Names: CVE-2023-20043 CVE-2023-20044 Summary o Multiple vulnerabilities in Cisco CX Cloud Agent could allow an authenticated, local attacker to elevate privileges. These vulnerabilities are due to insecure file permissions. A successful exploit could allow an attacker to take complete control of the affected device. For more information about these vulnerabilities, see the Details section of this advisory. Cisco has released software updates that address these vulnerabilities. There are no workarounds that address these vulnerabilities. This advisory is available at the following link: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cxagent-gOq9QjqZ Affected Products o Vulnerable Products At the time of publication, this vulnerability affected Cisco CX Cloud Agent. For information about which Cisco software releases were vulnerable at the time of publication, see the Fixed Software section of this advisory. See the Details section in the bug ID(s) at the top of this advisory for the most complete and current information. Products Confirmed Not Vulnerable Only products listed in the Vulnerable Products section of this advisory are known to be affected by these vulnerabilities. Cisco has confirmed that CVE-2023-20044 does not affect Cisco CX Cloud Agent when a release earlier than Release 2.2 was installed from an open virtual appliance (OVA) file and then upgraded to Release 2.2. Details o The vulnerabilities are not dependent on one another. Exploitation of one of the vulnerabilities is not required to exploit the other vulnerability. In addition, a software release that is affected by one of the vulnerabilities may not be affected by the other vulnerability. Details about the vulnerabilities are as follows: CVE-2023-20043: Cisco CX Cloud Agent Privilege Escalation Vulnerability A vulnerability in Cisco CX Cloud Agent could allow an authenticated, local attacker to elevate their privileges on an affected device. This vulnerability is due to insecure file permissions. An attacker could exploit this vulnerability by calling the script with the sudo command. A successful exploit could allow the attacker to take complete control of the affected device. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability. Bug ID(s): CSCwa73699 CVE ID: CVE-2023-20043 Security Impact Rating (SIR): Medium CVSS Base Score: 6.7 CVSS Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H CVE-2023-20044: Cisco CX Cloud Agent Privilege Escalation Vulnerability A vulnerability in Cisco CX Cloud Agent could allow an authenticated, local attacker to elevate their privileges on an affected device. This vulnerability is due to insecure file permissions. An attacker could exploit this vulnerability by persuading technical support to update certain settings, resulting in the insecure script being called. A successful exploit could allow the attacker to take complete control of the affected device. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability. Bug ID(s): CSCwd51828 CVE ID: CVE-2023-20044 Security Impact Rating (SIR): Medium CVSS Base Score: 6.7 CVSS Vector:CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H Workarounds o There are no workarounds that address this vulnerability. Fixed Software o When considering software upgrades , customers are advised to regularly consult the advisories for Cisco products, which are available from the Cisco Security Advisories page , to determine exposure and a complete upgrade solution. In all cases, customers should ensure that the devices to be upgraded contain sufficient memory and confirm that current hardware and software configurations will continue to be supported properly by the new release. If the information is not clear, customers are advised to contact the Cisco Technical Assistance Center (TAC) or their contracted maintenance providers. Fixed Releases At the time of publication, the release information in the following table (s) was accurate. See the Details section in the bug ID(s) at the top of this advisory for the most complete and current information. The left column lists Cisco software releases, and the right column indicates whether a release was affected by the vulnerabilities that are described in this advisory and which release included the fix for these vulnerabilities. CVE-2023-20043 Cisco CX Cloud Agent Release First Fixed Release 1.8 and earlier 1.9 1.8 upgraded to 2.2 Not vulnerable 2.2 installed from OVA file 2.2.1 2.2.1 Not vulnerable CVE-2023-20044 Cisco CX Cloud Agent Release First Fixed Release 2 and earlier 2.2.1 The Cisco Product Security Incident Response Team (PSIRT) validates only the affected and fixed release information that is documented in this advisory. Exploitation and Public Announcements o The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory. Source o This vulnerability was found by Kanstantsin Markelau of Cisco during internal security testing. Cisco Security Vulnerability Policy o To learn about Cisco security vulnerability disclosure policies and publications, see the Security Vulnerability Policy . This document also contains instructions for obtaining fixed software and receiving security vulnerability information from Cisco. Subscribe to Cisco Security Notifications o Subscribe Related to This Advisory o URL o https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cxagent-gOq9QjqZ Revision History o +----------+---------------------------+----------+--------+--------------+ | Version | Description | Section | Status | Date | +----------+---------------------------+----------+--------+--------------+ | 1.0 | Initial public release. | - | Final | 2023-JAN-11 | +----------+---------------------------+----------+--------+--------------+ Legal Disclaimer o THIS DOCUMENT IS PROVIDED ON AN "AS IS" BASIS AND DOES NOT IMPLY ANY KIND OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. YOUR USE OF THE INFORMATION ON THE DOCUMENT OR MATERIALS LINKED FROM THE DOCUMENT IS AT YOUR OWN RISK. CISCO RESERVES THE RIGHT TO CHANGE OR UPDATE THIS DOCUMENT AT ANY TIME. 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