Cisco Web Security Appliance vulnerabilities

64 vulnerabilities

Known vulnerabilities in Cisco Web Security Appliance, newest first, with CVSS severity, EPSS, KEV listings, ransomware use and the affected versions.

6.1CVE-2018-0406ciscoweb_security_appliance
EPSS score
1.78%
A vulnerability in the web-based management interface of Cisco Web Security Appliance (WSA) could allow an unauthenticated, remote attacker to conduct a reflected or Document Object Model based (DOM-based) cross-site scripting (XSS) attack against a user of the web-based management interface of an affected device. The vulnerability is due to insufficient validation of user-supplied input by the web-based management interface of an affected device. An attacker could exploit this vulnerability by persuading a user of the interface to click a crafted link. A successful exploit could allow the attacker to execute arbitrary script code in the context of the interface or allow the attacker to access sensitive browser-based information. Cisco Bug IDs: CSCve84006.
8.6CVE-2018-0410cisco systems, inc.asyncos software for cisco web security appliances+1
EPSS score
4.12%
A vulnerability in the web proxy functionality of Cisco AsyncOS Software for Cisco Web Security Appliances could allow an unauthenticated, remote attacker to exhaust system memory and cause a denial of service (DoS) condition on an affected system. The vulnerability exists because the affected software improperly manages memory resources for TCP connections to a targeted device. An attacker could exploit this vulnerability by establishing a high number of TCP connections to the data interface of an affected device via IPv4 or IPv6. A successful exploit could allow the attacker to exhaust system memory, which could cause the system to stop processing new connections and result in a DoS condition. System recovery may require manual intervention. Cisco Bug IDs: CSCvf36610.
7.5CVE-2018-0353ciscoweb_security_appliance
EPSS score
3.76%
A vulnerability in traffic-monitoring functions in Cisco Web Security Appliance (WSA) could allow an unauthenticated, remote attacker to circumvent Layer 4 Traffic Monitor (L4TM) functionality and bypass security protections. The vulnerability is due to a change in the underlying operating system software that is responsible for monitoring affected traffic. An attacker could exploit this vulnerability by sending crafted IP packets to an affected device. A successful exploit could allow the attacker to pass traffic through the device, which the WSA was configured to deny. This vulnerability affects both IPv4 and IPv6 traffic. This vulnerability affects Cisco AsyncOS versions for WSA on both virtual and hardware appliances running any release of the 10.5.1, 10.5.2, or 11.0.0 WSA Software. The WSA is vulnerable if it is configured for L4TM. Cisco Bug IDs: CSCvg78875.
7.2CVE-2018-0428cisco systems, inc.web security appliance+1
EPSS score
0.44%
A vulnerability in the account management subsystem of Cisco Web Security Appliance (WSA) could allow an authenticated, local attacker to elevate privileges to root. The attacker must authenticate with valid administrator credentials. The vulnerability is due to improper implementation of access controls. An attacker could exploit this vulnerability by authenticating to the device as a specific user to gain the information needed to elevate privileges to root in a separate login shell. A successful exploit could allow the attacker to escape the CLI subshell and execute system-level commands on the underlying operating system as root. Cisco Bug IDs: CSCvj93548.
6.1CVE-2018-0366ciscoweb_security_appliance
EPSS score
1.78%
A vulnerability in the web-based management interface of Cisco Web Security Appliance (WSA) could allow an unauthenticated, remote attacker to conduct a reflected cross-site scripting (XSS) attack against a user of the web-based management interface of an affected device. The vulnerability is due to insufficient validation of user-supplied input by the web-based management interface of an affected device. An attacker could exploit this vulnerability by persuading a user of the interface to click a crafted link. A successful exploit could allow the attacker to execute arbitrary script code in the context of the interface or allow the attacker to access sensitive browser-based information. Cisco Bug IDs: CSCvf03514.
7.8CVE-2013-5537ciscocontent_security_management_appliance+2
EPSS score
1.33%
The web framework on Cisco Web Security Appliance (WSA), Email Security Appliance (ESA), and Content Security Management Appliance (SMA) devices does not properly manage the state of HTTP and HTTPS sessions, which allows remote attackers to cause a denial of service (management GUI outage) via multiple TCP connections, aka Bug IDs CSCuj59411, CSCuf89818, and CSCuh05635.
6.8CVE-2013-3395ciscocontent_security_management_appliance+2
EPSS score
0.58%
Cross-site request forgery (CSRF) vulnerability in the web framework on Cisco IronPort Web Security Appliance (WSA) devices, Email Security Appliance (ESA) devices, and Content Security Management Appliance (SMA) devices allows remote attackers to hijack the authentication of arbitrary users, aka Bug IDs CSCuh70263, CSCuh70323, and CSCuh26634.
9CVE-2021-1359ciscoasyncos+2
EPSS score
1.88%
A vulnerability in the configuration management of Cisco AsyncOS for Cisco Web Security Appliance (WSA) could allow an authenticated, remote attacker to perform command injection and elevate privileges to root. This vulnerability is due to insufficient validation of user-supplied XML input for the web interface. An attacker could exploit this vulnerability by uploading crafted XML configuration files that contain scripting code to a vulnerable device. A successful exploit could allow the attacker to execute arbitrary commands on the underlying operating system and elevate privileges to root. An attacker would need a valid user account with the rights to upload configuration files to exploit this vulnerability.
7.4CVE-2021-1566ciscoasyncos+3
EPSS score
0.67%
A vulnerability in the Cisco Advanced Malware Protection (AMP) for Endpoints integration of Cisco AsyncOS for Cisco Email Security Appliance (ESA) and Cisco Web Security Appliance (WSA) could allow an unauthenticated, remote attacker to intercept traffic between an affected device and the AMP servers. This vulnerability is due to improper certificate validation when an affected device establishes TLS connections. A man-in-the-middle attacker could exploit this vulnerability by sending a crafted TLS packet to an affected device. A successful exploit could allow the attacker to spoof a trusted host and then extract sensitive information or alter certain API requests.
6.5CVE-2021-1516ciscocisco web security appliance (wsa)+4
EPSS score
1.00%
A vulnerability in the web-based management interface of Cisco AsyncOS Software for Cisco Content Security Management Appliance (SMA), Cisco Email Security Appliance (ESA), and Cisco Web Security Appliance (WSA) could allow an authenticated, remote attacker to access sensitive information on an affected device. The vulnerability exists because confidential information is included in HTTP requests that are exchanged between the user and the device. An attacker could exploit this vulnerability by looking at the raw HTTP requests that are sent to the interface. A successful exploit could allow the attacker to obtain some of the passwords that are configured throughout the interface.
6.1CVE-2021-1490ciscocisco web security appliance (wsa)+1
EPSS score
0.70%
A vulnerability in the web-based management interface of Cisco AsyncOS for Cisco Web Security Appliance (WSA) could allow an unauthenticated, remote attacker to conduct a cross-site scripting (XSS) attack against a user of the interface of an affected device. This vulnerability is due to improper validation of user-supplied input in the web-based management interface. An attacker could exploit this vulnerability by persuading a user to retrieve a crafted file that contains malicious payload and upload it to the affected device. 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.
5.3CVE-2021-1129ciscocisco web security appliance (wsa)+3
EPSS score
1.16%
A vulnerability in the authentication for the general purpose APIs implementation of Cisco Email Security Appliance (ESA), Cisco Content Security Management Appliance (SMA), and Cisco Web Security Appliance (WSA) could allow an unauthenticated, remote attacker to access general system information and certain configuration information from an affected device. The vulnerability exists because a secure authentication token is not required when authenticating to the general purpose API. An attacker could exploit this vulnerability by sending a crafted request for information to the general purpose API on an affected device. A successful exploit could allow the attacker to obtain system and configuration information from the affected device, resulting in an unauthorized information disclosure.
4.3CVE-2015-0738ciscoweb_security_appliance
EPSS score
1.54%
Cross-site scripting (XSS) vulnerability in the Web Tracking Report page on Cisco Web Security Appliance (WSA) devices 8.5.0-497 allows remote attackers to inject arbitrary web script or HTML via an unspecified field, aka Bug ID CSCuu16008.
7.2CVE-2015-0692ciscoweb_security_appliance
EPSS score
0.38%
Cisco Web Security Appliance (WSA) devices with software 8.5.0-ise-147 do not properly restrict use of the pickle Python module during certain tunnel-status checks, which allows local users to execute arbitrary Python code and gain privileges via crafted serialized objects, aka Bug ID CSCut39230.
4.3CVE-2015-0732ciscocontent_security_management_virtual_appliance+2
EPSS score
1.79%
Cross-site scripting (XSS) vulnerability in Cisco AsyncOS on the Web Security Appliance (WSA) 9.0.0-193; Email Security Appliance (ESA) 8.5.6-113, 9.1.0-032, 9.1.1-000, and 9.6.0-000; and Content Security Management Appliance (SMA) 9.1.0-033 allows remote attackers to inject arbitrary web script or HTML via an unspecified parameter, aka Bug IDs CSCuu37430, CSCuu37420, CSCut71981, and CSCuv50167.
4.3CVE-2015-0698ciscoweb_security_appliance
EPSS score
1.54%
Multiple cross-site scripting (XSS) vulnerabilities in filter search forms in admin web pages on Cisco Web Security Appliance (WSA) devices with software 8.5.0-497 allow remote attackers to inject arbitrary web script or HTML via a crafted URL, aka Bug ID CSCut39213.
7.2CVE-2015-0693ciscoweb_security_appliance
EPSS score
0.38%
Cisco Web Security Appliance (WSA) devices with software 8.5.0-ise-147 do not properly restrict use of the pickle Python module during certain tunnel-status checks, which allows local users to execute arbitrary Python code and gain privileges via a crafted pickle file, aka Bug ID CSCut39259.
4.3CVE-2015-0623ciscoweb_security_appliance
EPSS score
0.94%
Cross-site scripting (XSS) vulnerability in the Administrator report page on Cisco Web Security Appliance (WSA) devices allows remote attackers to inject arbitrary web script or HTML via unspecified vectors, aka Bug ID CSCus40627.
5CVE-2015-0628ciscoweb_security_appliance
EPSS score
1.25%
The proxy engine on Cisco Web Security Appliance (WSA) devices allows remote attackers to bypass intended proxying restrictions via a malformed HTTP method, aka Bug ID CSCus79174.
4.3CVE-2015-0624ciscocontent_security_management_appliance+2
EPSS score
2.16%
The web framework in Cisco AsyncOS on Email Security Appliance (ESA), Content Security Management Appliance (SMA), and Web Security Appliance (WSA) devices allows remote attackers to trigger redirects via a crafted HTTP header, aka Bug IDs CSCur44412, CSCur44415, CSCur89630, CSCur89636, CSCur89633, and CSCur89639.