Multiple vulnerabilities in Cisco Adaptive Security Appliance

1) Information disclosure

EUVDB-ID: #VU7675

Risk: Low

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-6752

CWE-ID: CWE-200 - Information exposure

Exploit availability: No

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 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.

Mitigation

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).

Vulnerable software versions

Cisco ASA 5500-X Series: 9.3.3 - 9.6.2

External links

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

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Cross-site scripting

EUVDB-ID: #VU7676

Risk: Low

CVSSv3.1: 4.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-6764

CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Exploit availability: No

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.

Mitigation

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).

Vulnerable software versions

Cisco ASA 5500-X Series: 9.5.1

External links

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

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

3) Cross-site scripting

EUVDB-ID: #VU7677

Risk: Low

CVSSv3.1: 5.3 [CVSS:3.1/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-2017-6765

CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Exploit availability: No

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.

Mitigation

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).

Vulnerable software versions

Cisco ASA 5500-X Series: 9.1.6.11 - 9.4.1.2

External links

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

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.