Cisco Security Advisory
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CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:X/RL:X/RC:X
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Multiple vulnerabilities in the web-based management interface of Cisco Unified Communications Manager (Unified CM), Cisco Unified Communications Manager IM & Presence Service (Unified CM IM&P), Cisco Unified Communications Manager Session Management Edition (Unified CM SME), and Cisco Unity Connection could allow an unauthenticated, remote attacker to conduct a cross-site scripting (XSS) attack against an interface user.
These vulnerabilities exist because the web-based management interface does not properly validate user-supplied input. An attacker could exploit these vulnerabilities by persuading an interface user to click a crafted link. A successful exploit could allow the attacker to execute arbitrary script code in the context of the affected interface or access sensitive browser-based information.
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-cucm-xss-Q4PZcNzJ
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Vulnerable Products
At the time of publication, all releases earlier than Release 14 of the following Cisco products were affected by the following vulnerabilities. See the Details section in the bug ID(s) at the top of this advisory for the most complete and current information.
Cisco Product Vulnerable Releases CVE IDs Unified CM Earlier than 14 CVE-2021-1380, CVE-2021-1407, CVE-2021-1408, CVE-2021-1409 Unified CM IM&P Earlier than 14 CVE-2021-1409 Unified CM SME Earlier than 14 CVE-2021-1380, CVE-2021-1407, CVE-2021-1408, CVE-2021-1409 Unity Connection Earlier than 14 CVE-2021-1380, CVE-2021-1409 Products Confirmed Not Vulnerable
Only products listed in the Vulnerable Products section of this advisory are known to be affected by these vulnerabilities.
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The vulnerabilities are not dependent on one another. Exploitation of one of the vulnerabilities is not required to exploit another vulnerability. In addition, a software release that is affected by one of the vulnerabilities may not be affected by the other vulnerabilities.
Details about the vulnerabilities are as follows:
CVE-2021-1380: Cisco Unified Communications Products Cross-Site Scripting Vulnerability
A vulnerability in the web-based management interface of Cisco Unified CM, Cisco Unified CM SME, and Cisco Unity Connection could allow an unauthenticated, remote attacker to conduct an XSS attack against an interface user.
This vulnerability exists because the web-based management interface does not properly validate user-supplied input. An attacker could exploit this vulnerability by persuading an interface user to click a crafted link. A successful exploit could allow the attacker to execute arbitrary script code in the context of the affected interface or access sensitive browser-based information.
Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.
Bug ID(s): CSCvu52262, CSCvv35159
CVE ID: CVE-2021-1380
Security Impact Rating (SIR): Medium
CVSS Base Score: 6.1
CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:NCVE-2021-1407: Cisco Unified Communications Products Cross-Site Scripting Vulnerability
A vulnerability in the web-based management interface of Cisco Unified CM and Cisco Unified CM SME could allow an unauthenticated, remote attacker to conduct an XSS attack against an interface user.
This vulnerability exists because the web-based management interface does not properly validate user-supplied input. An attacker could exploit this vulnerability by persuading an interface user to click a crafted link. A successful exploit could allow the attacker to execute arbitrary script code in the context of the affected interface or access sensitive browser-based information.
Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.
Bug ID(s): CSCvv28764
CVE ID: CVE-2021-1407
Security Impact Rating (SIR): Medium
CVSS Base Score: 6.1
CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:NCVE-2021-1408: Cisco Unified Communications Products Cross-Site Scripting Vulnerability
A vulnerability in the web-based management interface of Cisco Unified CM and Cisco Unified CM SME could allow an unauthenticated, remote attacker to conduct an XSS attack against an interface user.
This vulnerability exists because the web-based management interface does not properly validate user-supplied input. An attacker could exploit this vulnerability by persuading an interface user to click a crafted link. A successful exploit could allow the attacker to execute arbitrary script code in the context of the affected interface or access sensitive browser-based information.
Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.
Bug ID(s): CSCvv21040
CVE ID: CVE-2021-1408
Security Impact Rating (SIR): Medium
CVSS Base Score: 6.1
CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:NCVE-2021-1409: Cisco Unified Communications Products Cross-Site Scripting Vulnerability
A vulnerability in the web-based management interface of Cisco Unified CM, Cisco Unified CM IM&P, Cisco Unified CM SME, and Cisco Unity Connection could allow an unauthenticated, remote attacker to conduct an XSS attack against an interface user.
This vulnerability exists because the web-based management interface does not properly validate user-supplied input. An attacker could exploit this vulnerability by persuading an interface user to click a crafted link. A successful exploit could allow the attacker to execute arbitrary script code in the context of the affected interface or access sensitive browser-based information.
Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.
Bug ID(s): CSCvw71918, CSCvx14158, CSCvx14178
CVE ID: CVE-2021-1409
Security Impact Rating (SIR): Medium
CVSS Base Score: 6.1
CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
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There are no workarounds that address these vulnerabilities.
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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, releases 14 and later of the following Cisco products contained the fix for the following vulnerabilities. See the Details section in the bug ID(s) at the top of this advisory for the most complete and current information.
Cisco Product Fixed Releases CVE IDs Unified CM 14 and later CVE-2021-1380, CVE-2021-1407, CVE-2021-1408, CVE-2021-1409 Unified CM IM&P 14 and later CVE-2021-1380, CVE-2021-1409 Unified CM SME 14 and later CVE-2021-1380, CVE-2021-1407, CVE-2021-1408, CVE-2021-1409 Unity Connection 14 and later CVE-2021-1380, CVE-2021-1409
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The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerabilities that are described in this advisory.
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Cisco would like to thank Christopher Schneider of State Farm® Information Security for reporting CVE-2021-1380.
Cisco would like to thank Mohamed Sayed of IBM X-Force Red for reporting the following vulnerabilities: CVE-2021-1407 and CVE-2021-1408.
CVE-2021-1409 was found during internal security testing.
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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.
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Show LessVersion Description Section Status Date 1.0 Initial public release. — Final 2021-APR-07
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