high
7.5
CWE
20
Advisory Published

cisco-sa-asaftd-ro-path-KJuQhB86: Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Web Services Read-Only Path Traversal Vulnerability

First published: Wed Jul 22 2020(Updated: )

A vulnerability in the web services interface of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to conduct directory traversal attacks and read sensitive files on a targeted system. The vulnerability is due to a lack of proper input validation of URLs in HTTP requests processed by an affected device. An attacker could exploit this vulnerability by sending a crafted HTTP request containing directory traversal character sequences to an affected device. A successful exploit could allow the attacker to view arbitrary files within the web services file system on the targeted device. As an example, this could allow an attacker to impersonate another VPN user and establish a Clientless SSL VPN or AnyConnect VPN session to the device as that user. The web services file system is enabled when the affected device is configured with either WebVPN or AnyConnect features. This vulnerability cannot be used to obtain access to ASA or FTD system files, underlying operating system (OS) files, or VPN user login credentials. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability. Note: Cisco has become aware of the availability of public exploit code and active exploitation of the vulnerability that is described in this advisory. Cisco encourages customers with affected products to upgrade to a fixed release as soon as possible. This advisory is available at the following link:https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-ro-path-KJuQhB86

Credit: Mikhail Klyuchnikov Positive TechnologiesAbdulrahman Nour RedForce for independently reporting this vulnerabilityAhmed Aboul-Ela RedForce for independently reporting this vulnerability

Affected SoftwareAffected VersionHow to fix
Cisco ASA Software=9.14<9.14.1.10=9.13<9.13.1.10=9.12<9.12.3.12=9.10<9.10.1.42=9.9<9.9.2.74>=9.7<=9.8<9.8.4.20>=Earlier than 9.6<=9.6<9.6.4.42
9.14.1.10
9.13.1.10
9.12.3.12
9.10.1.42
9.9.2.74
9.8.4.20
9.6.4.42
Cisco FTD Software=6.5.0<Migrate to 6.6.0.1 or6.5.0.4 + Hot Fix1 or6.5.0.5 (Fall 2020)=6.4.0<6.4.0.9 + Hot Fix1 or6.4.0.10 (Fall 2020)=6.3.0<Migrate to 6.4.0.9 + Hot Fix or to 6.6.0.1 or6.3.0.5 + Hot Fix1 or6.3.0.6 (Fall 2020)>=6.2.2<=6.2.3<6.2.3.16
Migrate to 6.6.0.1 or6.5.0.4 + Hot Fix1 or6.5.0.5 (Fall 2020)
6.4.0.9 + Hot Fix1 or6.4.0.10 (Fall 2020)
Migrate to 6.4.0.9 + Hot Fix or to 6.6.0.1 or6.3.0.5 + Hot Fix1 or6.3.0.6 (Fall 2020)
6.2.3.16
Cisco FTD Software=6.5.0.4<Cisco_FTD_Hotfix_O-6.5.0.5-3.sh.REL.tar Cisco_FTD_SSP_FP2K_Hotfix_O-6.5.0.5-3.sh.REL.tarCisco_FTD_SSP_FP1K_Hotfix_O-6.5.0.5-3.sh.REL.tar Cisco_FTD_SSP_Hotfix_O-6.5.0.5-3.sh.REL.tar=6.4.0.9<Cisco_FTD_Hotfix_BM-6.4.0.10-2.sh.REL.tarCisco_FTD_SSP_FP1K_Hotfix_BM-6.4.0.10-2.sh.REL.tarCisco_FTD_SSP_FP2K_Hotfix_BM-6.4.0.10-2.sh.REL.tarCisco_FTD_SSP_Hotfix_BM-6.4.0.10-2.sh.REL.tar=6.3.0.5<Cisco_FTD_Hotfix_AV-6.3.0.6-3.sh.REL.tar Cisco_FTD_SSP_Hotfix_AV-6.3.0.6-3.sh.REL.tarCisco_FTD_SSP_FP2K_Hotfix_AV-6.3.0.6-3.sh.REL.tar
Cisco_FTD_Hotfix_O-6.5.0.5-3.sh.REL.tar Cisco_FTD_SSP_FP2K_Hotfix_O-6.5.0.5-3.sh.REL.tarCisco_FTD_SSP_FP1K_Hotfix_O-6.5.0.5-3.sh.REL.tar Cisco_FTD_SSP_Hotfix_O-6.5.0.5-3.sh.REL.tar
Cisco_FTD_Hotfix_BM-6.4.0.10-2.sh.REL.tarCisco_FTD_SSP_FP1K_Hotfix_BM-6.4.0.10-2.sh.REL.tarCisco_FTD_SSP_FP2K_Hotfix_BM-6.4.0.10-2.sh.REL.tarCisco_FTD_SSP_Hotfix_BM-6.4.0.10-2.sh.REL.tar
Cisco_FTD_Hotfix_AV-6.3.0.6-3.sh.REL.tar Cisco_FTD_SSP_Hotfix_AV-6.3.0.6-3.sh.REL.tarCisco_FTD_SSP_FP2K_Hotfix_AV-6.3.0.6-3.sh.REL.tar

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Child vulnerabilities

(Contains the following vulnerabilities)

Frequently Asked Questions

  • What is the vulnerability ID?

    The vulnerability ID is cisco-sa-asaftd-ro-path-KJuQhB86.

  • What is the severity level of the vulnerability?

    The severity level of the vulnerability is high.

  • What is the affected software?

    The affected software includes Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software.

  • How can an attacker exploit this vulnerability?

    An attacker can exploit this vulnerability by conducting directory traversal attacks and reading sensitive files on a targeted system.

  • How can I fix this vulnerability?

    To fix this vulnerability, apply the recommended software updates provided by Cisco.

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