CVE-2022-20784

CVE-2022-20784 is a Cisco Web Security Appliance (WSA) filter-bypass vulnerability in the WBRS engine of Cisco AsyncOS. The issue stems from incorrect handling of certain URL character combinations, allowing an unauthenticated, remote attacker to bypass web request policies and access content blo...

Cisco Web Security Appliance Filter Bypass Vulnerability

A vulnerability in the Web-Based Reputation Score WBRS engine of Cisco AsyncOS Software for Cisco Web Security Appliance WSA could allow an unauthenticated, remote attacker to bypass established web request policies and access blocked content on an affected device. This vulnerability is due to...

Cisco Web Security Appliance Stored Cross-Site Scripting Vulnerability

A vulnerability in the web-based management interface of Cisco AsyncOS Software for Cisco Web Security Appliance WSA could allow an authenticated, remote attacker to conduct a stored cross-site scripting XSS attack against a user of the interface of an affected device. The vulnerability exists...

Cisco Web Security Appliance和Cisco AsyncOS 跨站脚本漏洞

The Cisco Web Security Appliance WSA and Cisco AsyncOS are both products of Cisco, U.S.A. The Cisco Web Security Appliance is a Web security appliance. The appliance provides SaaS-based access control, real-time web reporting and tracking, and development of security policies.Cisco AsyncOS is an...

CVE-2022-20653

Cisco ESA/DNS Verification DoS (CVE-2022-20653) affects Cisco AsyncOS for Email Security Appliance. Root cause: insufficient DNS name-resolution error handling in the DANE email verification component, enabling unauthenticated remote DoS via specially formatted emails. Impact: device can become u...

Cisco Email Security Appliance DNS Verification Denial of Service Vulnerability

A vulnerability in the DNS-based Authentication of Named Entities DANE email verification component of Cisco AsyncOS Software for Cisco Email Security Appliance ESA could allow an unauthenticated, remote attacker to cause a denial of service DoS condition on an affected device. This vulnerability...

PT-2022-1637 · Cisco · Cisco Email Security Appliance +1

Name of the Vulnerable Software and Affected Versions: Cisco Email Security Appliance ESA versions prior to Cisco AsyncOS Software Release 13.5.4.102 Description: A vulnerability in the DNS-based Authentication of Named Entities DANE email verification component could allow an unauthenticated,...

The vulnerability of the Cisco AsyncOS operating system for Cisco Email Security Appliance systems allows attackers to compromise the integrity of protected information.

The vulnerability of the Cisco AsyncOS operating system for Cisco Email Security Appliance systems exists due to insufficient validation of input data. Exploiting this vulnerability could allow a malicious actor to compromise the integrity of the protected information...

The vulnerability of the Cisco AsyncOS operating system proxy server of Cisco Web Security Appliance allows a perpetrator to cause a service failure or execute arbitrary code.

The vulnerability of the Cisco AsyncOS operating system’s proxy server, which is part of the Cisco Web Security Appliance internet gateway, relates to memory release errors. Exploiting this vulnerability could allow a malicious actor to cause service failures or execute arbitrary code...

Hardcoded SSH Key in Cisco Policy Suite Lets Remote Hackers Gain Root Access

Cisco Systems has released security updates to address vulnerabilities in multiple Cisco products that could be exploited by an attacker to log in as a root user and take control of vulnerable systems. Tracked as CVE-2021-40119, the vulnerability has been rated 9.8 in severity out of a maximum of...

Input validation

A vulnerability in the email scanning algorithm of Cisco AsyncOS software for Cisco Email Security Appliance ESA could allow an unauthenticated, remote attacker to perform a denial of service DoS attack against an affected device. This vulnerability is due to insufficient input validation of...

CVE-2021-34741

Cisco Email Security Appliance (ESA) with Cisco AsyncOS contains a DoS vulnerability due to insufficient validation of incoming emails in the email scanning algorithm. An unauthenticated attacker could exhaust CPU resources by sending a crafted email, causing DoS. Public advisories from Cisco doc...

CVE-2021-34741 Cisco Email Security Appliance Denial of Service Vulnerability

A vulnerability in the email scanning algorithm of Cisco AsyncOS software for Cisco Email Security Appliance ESA could allow an unauthenticated, remote attacker to perform a denial of service DoS attack against an affected device. This vulnerability is due to insufficient input validation of...

CVE-2021-34741 Cisco Email Security Appliance Denial of Service Vulnerability

A vulnerability in the email scanning algorithm of Cisco AsyncOS software for Cisco Email Security Appliance ESA could allow an unauthenticated, remote attacker to perform a denial of service DoS attack against an affected device. This vulnerability is due to insufficient input validation of...

PT-2021-4953 · Cisco · Cisco Asyncos +1

Name of the Vulnerable Software and Affected Versions: Cisco Email Security Appliance ESA affected versions not specified Description: The issue is related to insufficient input validation of incoming emails in the email scanning algorithm of Cisco AsyncOS software. This could allow an...

Cisco Email Security Appliance Denial of Service Vulnerability

A vulnerability in the email scanning algorithm of Cisco AsyncOS software for Cisco Email Security Appliance ESA could allow an unauthenticated, remote attacker to perform a denial of service DoS attack against an affected device. This vulnerability is due to insufficient input validation of...

Vulnerability fixed in Cisco Email Security Appliance

Cisco has fixed a vulnerability in the Email Security Appliance. An unauthenticated malicious person could exploit the vulnerability to use a specially prepared URL to still bypass the URL Reputation filters and, in effect, the entire filtering system. The integrity or continuity of the Appliance...

CVE-2021-34698

A vulnerability in the proxy service of Cisco AsyncOS for Cisco Web Security Appliance WSA could allow an unauthenticated, remote attacker to exhaust system memory and cause a denial of service DoS condition on an affected device. This vulnerability is due to improper memory management in the pro...

CVE-2021-1534

A vulnerability in the antispam protection mechanisms of Cisco AsyncOS Software for Cisco Email Security Appliance ESA could allow an unauthenticated, remote attacker to bypass the URL reputation filters on an affected device. This vulnerability is due to improper processing of URLs. An attacker...

Input validation

A vulnerability in the antispam protection mechanisms of Cisco AsyncOS Software for Cisco Email Security Appliance ESA could allow an unauthenticated, remote attacker to bypass the URL reputation filters on an affected device. This vulnerability is due to improper processing of URLs. An attacker...