Cross-site scripting in Cisco Email Security Appliance

1) Cross-site scripting

EUVDB-ID: #VU1098

Risk: Low

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U/U:Clear]

CVE-ID: CVE-2016-1423

CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Exploit availability: No

Description

The disclosed vulnerability allows a remote unauthenticated user to perform cross-site scripting (XSS) attacks.
The vulnerability is caused by incorrect filtration of input data. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in victim’s browser in security context of vulnerable website.
Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks

Mitigation

Update to version 9.1.1-038, 9.7.2-047.

Vulnerable software versions

Cisco Email Security Appliance: 8.0.2 069 - 9.7.2 047

CPE2.3

• cpe:2.3:a:cisco_systems:cisco_email_security_appliance:8.0.2 069:*:*:*:*:*:*:*
• cpe:2.3:a:cisco_systems:cisco_email_security_appliance:9.1.1 038:*:*:*:*:*:*:*
• cpe:2.3:a:cisco_systems:cisco_email_security_appliance:9.7.2 047:*:*:*:*:*:*:*

External links

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20161026-esa4

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

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