Multiple vulnerabilities in Cisco Adaptive Security Appliance

Published: 2017-08-03 13:09:36
Severity Low
Patch available YES
Number of vulnerabilities 3
CVSSv2 3.7 (AV:N/AC:L/Au:N/C:P/I:N/A:N/E:U/RL:OF/RC:C)
2.6 (AV:N/AC:M/Au:S/C:N/I:P/A:N/E:U/RL:OF/RC:C)
3.2 (AV:N/AC:M/Au:N/C:N/I:P/A:N/E:U/RL:OF/RC:C)
CVSSv3 4.6 [CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]
4.7 [CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C]
5.2 [CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C]
CVE ID CVE-2017-6752
CVE-2017-6764
CVE-2017-6765
CWE ID CWE-200
CWE-79
Exploitation vector Network
Public exploit Not available
Vulnerable software Cisco ASA 5500-X Series
Vulnerable software versions Cisco ASA 5500-X Series 9.3(3)
Cisco ASA 5500-X Series 9.6(2)
Cisco ASA 5500-X Series 9.5(1)
Cisco ASA 5500-X Series 9.4(1.2)
Cisco ASA 5500-X Series 9.1(6.11)
Vendor URL Cisco Systems, Inc
Advisory type Public

Security Advisory

1) Information disclosure

Description

The vulnerability allows a remote unauthenticated attacker to obtain potentially sensitive information on the target system.

The weakness exists in the web interface of the Cisco Adaptive Security Appliance (ASA) due to due to the interaction between Lightweight Directory Access Protocol (LDAP) and SSL Connection Profile when they are configured together. A remote attacker can perform a username enumeration attack to the IP address of the device, determine valid usernames and conduct additional reconnaissance attacks.

Successful exploitation of the vulnerability results in information disclosure.

Remediation

The vulnerability is addressed in the following versions: 10.0.13(0.161), 10.0.11(0.76), 10.0.8(40.131), 9.9.1(20.20), 9.9.1(10.4), 9.8.1(12.54), 9.8.1(1.114), 9.8.1(0.8), 9.7.1(0.153), 9.6.2(0.132), 9.8(0.99), 9.7(1.5), 9.6(3.2), 9.4(4.6), 9.2(4.21), 9.1(7.17).

External links

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170802-asa2

2) Cross-site scripting

Description

The disclosed vulnerability allows a remote authenticated attacker to perform cross-site scripting (XSS) attacks.

The vulnerability is caused by incorrect filtration of input data. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in victim’s browser in security context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.

Remediation

The vulnerability is addressed in the following versions: 10.0.13(0.162), 10.0.11(0.79), 10.0.8(40.133), 9.9.1(21.1), 9.9.1(20.32), 9.9.1(10.9), 9.8.1(16.3), 9.8.1(12.87), 9.8.1(1.136), 9.7.1(0.158), 9.6.2(0.140), 9.8(1.1), 9.6(3.5), 9.4(4.6), 9.2(4.21), 9.1(7.17).

External links

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170802-asa

3) Cross-site scripting

Description

The disclosed vulnerability allows a remote unauthenticated attacker to perform cross-site scripting (XSS) attacks.

The vulnerability is caused by incorrect filtration of input data. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in victim’s browser in security context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.

Remediation

The vulnerability is addressed in the following versions: 10.0.11(0.80), 10.0.8(40.134), 9.9.1(21.5), 9.9.1(20.47), 9.9.1(10.22), 9.8.1(18.3), 9.8.1(16.8), 9.8.1(12.103), 9.8.1(1.151), 9.7.1(0.159), 9.6.2(0.142), 9.8(1.1), 9.6(3.5), 9.4(4.7), 9.2(4.21), 9.1(7.17).

External links

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170802-asa1

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