Multiple vulnerabilities in Cisco IOS XE



Risk Low
Patch available YES
Number of vulnerabilities 2
CVE-ID CVE-2017-12272
CVE-2017-12289
CWE-ID CWE-79
CWE-200
Exploitation vector Network
Public exploit N/A
Vulnerable software
 Cisco IOS XE
Operating systems & Components / Operating system

Vendor Cisco Systems, Inc

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Cross-site scripting

EUVDB-ID: #VU8889

Risk: Low

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U/U:Clear]

CVE-ID: CVE-2017-12272

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 attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists in the web framework code of Cisco IOS XE Software due to insufficient sanitization of user-supplied data. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in 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

Update to version 16.3.2 or 16.4.1.

Vulnerable software versions

Cisco IOS XE: 16.1.2 - 16.3.1

CPE2.3 External links

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171018-cisco-ios-xe


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) Information disclosure

EUVDB-ID: #VU8890

Risk: Low

CVSSv4.0: 4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2017-12289

CWE-ID: CWE-200 - Exposure of sensitive information to an unauthorized actor

Exploit availability: No

Description

The disclosed vulnerability allows a local privileged attacker to obtain potentially sensitive information.

The vulnerability exists in conditional, verbose debug logging for the IPsec feature of Cisco IOS XE Software due to incorrect implementation of IPsec conditional, verbose debug logging that causes sensitive information to be written to the log file. A local attacker with administrative credentials can authenticate to the device and enable conditional, verbose debug logging for IPsec to access sensitive information related to the IPsec configuration.

Successful exploitation of the vulnerability results in information disclosure.

Mitigation

Update to version 16.3.2 or 16.4.1.

Vulnerable software versions

Cisco IOS XE: 16.1.2 - 16.3.1

CPE2.3 External links

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171018-cisco-ios-xe1


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

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



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