PT-2015-7152 · Cisco · Cisco Web Security Appliance

Published 2015-09-14 · Updated 2016-12-29 · CVE-2015-6287

Positive Technologies (AI Summary)

CVSS v2.0

5.0

Medium

Base vector

AV:N/AC:L/Au:N/C:N/I:N/A:P

Name of the Vulnerable Software and Affected Versions Cisco Web Security Appliance (WSA) versions 8.0.6-078 through 8.0.6-115

Description The issue allows remote attackers to cause a denial of service, resulting in a service outage. This is achieved by flooding the system with TCP traffic, which leads to delays in DNS resolution.

Recommendations For versions 8.0.6-078 through 8.0.6-115, consider implementing rate limiting on TCP traffic to mitigate the risk of DNS resolution delays. As a temporary workaround, restrict access to the DNS resolution service to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Weakness Enumeration

CWE-399

Related Identifiers

CVE-2015-6287

Affected Products

Cisco Web Security Appliance

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2015-6287 · Security Note
• http://tools.cisco.com/security/center/viewAlert.x?alertId=40846 · Vendor Advisory
• http://securityfocus.com/bid/76677 · Note
• http://securitytracker.com/id/1033529 · Note