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Cisco Secure Desktop Remote Cross-Site Scripting Vulnerability

Cisco-SA-20100201-CVE-2010-0440 · Medium · Published · Updated

Cisco Secure Desktop contains a vulnerability that could allow an unauthenticated, remote attacker to conduct cross-site scripting attacks. The vulnerability is due to a lack of input sanitation in the Cisco Secure Desktop.  An unauthenticated, remote attacker could exploit this vulnerability by convincing a targeted user to visit a malicious website that is designed to submit an HTTP POST request to the web interface of the affected product.  If the targeted user visits the malicious page, the attacker could execute arbitrary script code in the browser of the user in the security context of the affected site. Proof-of-concept code is publicly available. Cisco has confirmed this vulnerability and released updated software. To exploit this vulnerability, an attacker must convince a targeted user to visit a malicious website.  Performing an exploit will likely require the attacker to use social engineering tactics, such as sending targeted users a link to the site via e-mail, instant messaging, or another form of communication. Cisco would like to thank Matias Pablo Brutti and Ernesto Alvarez from Core Security Technologies for discovering this vulnerability. Because of changes made in Cisco Secure Desktop 3.5, Cisco ASA with an older version of ASA firmware but with Cisco Secure Desktop 3.5 or later will not be affected by this vulnerability. The problem is fixed for Cisco ASA firmware version8.0(5) and later.

Cisco advisory · CSAF JSON

Workarounds

Administrators are advised to apply the appropriate updates.

Users are advised not to open e-mail messages from suspicious or unrecognized sources.  If users cannot verify that links or attachments included in e-mail messages are safe, they are advised not to open them.

The Cisco Applied Intelligence team has created the following companion document to guide administrators in identifying and mitigating attempts to exploit this vulnerability prior to applying updated software: cisco-amb-20060922-understanding-xss["http://www.cisco.com/en/US/products/products_applied_mitigation_bulletin09186a008073f7b3.html"]

Users should verify that unsolicited links are safe to follow.

CVEsCVE-2010-0440
Cisco Bug IDsNA
CVSS ScoreBase 4.3
Base 4.3 AV:N/AC:M/Au:N/C:N/I:P/A:N/E:POC/RL:OF/RC:C/CDP:N/TD:N/CR:ND/IR:ND/AR:ND
Product Names From Source
Cisco PIX/ASA, Cisco Secure Desktop

Related Products

Product CVE Evidence
Cisco Secure Desktop CVE-2010-0440 Cisco OpenVuln
Cisco PIX/ASA CVE-2010-0440 Cisco OpenVuln