Multiple vulnerabilities in Cisco Ultra Services Framework



Risk High
Patch available YES
Number of vulnerabilities 4
CVE-ID CVE-2017-6714
CVE-2017-6709
CVE-2017-6708
CVE-2017-6711
CWE-ID CWE-78
CWE-200
CWE-20
CWE-287
Exploitation vector Network
Public exploit N/A
Vulnerable software
 Cisco Ultra Services Framework
Server applications / Frameworks for developing and running applications

Vendor Cisco Systems, Inc

Security Bulletin

This security bulletin contains information about 4 vulnerabilities.

1) OS command injection

EUVDB-ID: #VU7341

Risk: High

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2017-6714

CWE-ID: CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Exploit availability: No

Description

The vulnerability allows a remote unauthenticated attacker to execute arbitrary shell commands.

The vulnerability exists in the AutoIT service of Cisco Ultra Services Framework Staging Server due to improper shell invocations. A remote attacker can use specially crafted CLI commands to execute Linux shell commands with root privileges.

Successful exploitation of the vulnerability may result in system compromise.

Mitigation

The vulnerability is addressed in the following versions:
5.0.3, 5.1.

Vulnerable software versions

Cisco Ultra Services Framework: All versions

CPE2.3 External links

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170705-usf3


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: #VU7342

Risk: Low

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2017-6709

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

Exploit availability: No

Description

The vulnerability allows a remote unauthenticated attacker to obtain potentially sensitive information.

The vulnerability exists in the AutoVNF tool for the Cisco Ultra Services Framework due to logging of administrative credentials for Cisco ESC and Cisco OpenStack deployment purposes in clear text. A remote attacker can access the AutoVNF URL for the location where the log files are stored and subsequently access the administrative credential.

Successful exploitation of the vulnerability may result in information disclosure.

Mitigation

The vulnerability is addressed in the following versions:
5.0.3, 5.1.

Vulnerable software versions

Cisco Ultra Services Framework: All versions

CPE2.3 External links

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170705-usf2


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.

3) Improper input validation

EUVDB-ID: #VU7343

Risk: High

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2017-6708

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote unauthenticated attacker to obtain potentially sensitive information or execute arbitrary code.

The vulnerability exists in the symbolic link (symlink) creation functionality of the AutoVNF tool for the Cisco Ultra Services Framework due to improper input validation. A remote attacker can supply specially crafted data used to create symbolic links and read any sensitive file or execute malicious code on an affected system.

Successful exploitation of the vulnerability may result in system compromise.

Mitigation

The vulnerability is addressed in the following versions:
5.0.3, 5.1.

Vulnerable software versions

Cisco Ultra Services Framework: All versions

CPE2.3 External links

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170705-usf1


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.

4) Security restrictions bypass

EUVDB-ID: #VU7344

Risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2017-6711

CWE-ID: CWE-287 - Improper Authentication

Exploit availability: No

Description

The vulnerability allows a remote unauthenticated attacker to bypass security restrictions.

The vulnerability exists in the Ultra Automation Service (UAS) of the Cisco Ultra Services Framework due to an insecure default configuration of the Apache ZooKeeper service. A remote attacker can use orchestrator network to bypass security restrictions, gain access to ZooKeeper data nodes (znodes) and influence the behavior of the system's high-availability feature.

Successful exploitation of the vulnerability may result in unauthorized access to the affected device.

Mitigation

The vulnerability is addressed in the following versions:
5.0.3, 5.1.

Vulnerable software versions

Cisco Ultra Services Framework: All versions

CPE2.3 External links

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170705-uas


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.



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