CVE-2017-6662 - Improper Restriction of XML External Entity Reference

Severity

60%

Complexity

68%

Confidentiality

106%

A vulnerability in the web-based user interface of Cisco Prime Infrastructure (PI) and Evolved Programmable Network Manager (EPNM) could allow an authenticated, remote attacker read and write access to information stored in the affected system as well as perform remote code execution. The attacker must have valid user credentials. The vulnerability is due to improper handling of XML External Entity (XXE) entries when parsing an XML file. An attacker could exploit this vulnerability by convincing the administrator of an affected system to import a crafted XML file with malicious entries which could allow the attacker to read and write files and execute remote code within the application, aka XML Injection. Cisco Prime Infrastructure software releases 1.1 through 3.1.6 are vulnerable. Cisco EPNM software releases 1.2, 2.0, and 2.1 are vulnerable. Cisco Bug IDs: CSCvc23894 CSCvc49561.

A vulnerability in the web-based user interface of Cisco Prime Infrastructure (PI) and Evolved Programmable Network Manager (EPNM) could allow an authenticated, remote attacker read and write access to information stored in the affected system as well as perform remote code execution. The attacker must have valid user credentials. The vulnerability is due to improper handling of XML External Entity (XXE) entries when parsing an XML file. An attacker could exploit this vulnerability by convincing the administrator of an affected system to import a crafted XML file with malicious entries which could allow the attacker to read and write files and execute remote code within the application, aka XML Injection. Cisco Prime Infrastructure software releases 1.1 through 3.1.6 are vulnerable. Cisco EPNM software releases 1.2, 2.0, and 2.1 are vulnerable. Cisco Bug IDs: CSCvc23894 CSCvc49561.

CVSS 3.0 Base Score 8. CVSS Attack Vector: network. CVSS Attack Complexity: low. CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H).

CVSS 2.0 Base Score 6. CVSS Attack Vector: network. CVSS Attack Complexity: medium. CVSS Vector: (AV:N/AC:M/Au:S/C:P/I:P/A:P).

Overview

Type

Cisco

First reported 7 years ago

2017-06-26 07:29:00

Last updated 5 years ago

2019-07-29 17:47:00

Affected Software

Cisco Evolved Programmable Network Manager 1.2.1.3

1.2.1.3

Cisco Evolved Programmable Network Manager 1.2.200

1.2.200

Cisco Evolved Programmable Network Manager 1.2.300

1.2.300

Cisco Evolved Programmable Network Manager 1.2.400

1.2.400

Cisco Evolved Programmable Network Manager 1.2.500

1.2.500

Cisco Prime Infrastructure 1.2

1.2

Cisco Prime Infrastructure 1.2.0.103

1.2.0.103

Cisco Prime Infrastructure 1.2.1

1.2.1

Cisco Prime Infrastructure 1.3

1.3

Cisco Prime Infrastructure 1.3.0.20

1.3.0.20

Cisco Prime Infrastructure 1.4

1.4

Cisco Prime Infrastructure 1.4.0.45

1.4.0.45

Cisco Prime Infrastructure 1.4.1

1.4.1

Cisco Prime Infrastructure 2.0

2.0

Cisco Prime Infrastructure 2.2

2.2

Cisco Prime Infrastructure 2.2(2)

2.2\(2\)

Cisco Prime Infrastructure 3.0

3.0

Cisco Prime Infrastructure 3.1

3.1

Cisco Prime Infrastructure 3.1.1

3.1.1

References

99194

Third Party Advisory, VDB Entry

1038750

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170621-piepnm1

Vendor Advisory

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