VDB-102803 · CVE-2017-6662 · BID 99194

Cisco Prime Infrastructure/Evolved Programmable Network Web UI xml external entity reference

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.4$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in Cisco Prime Infrastructure and Evolved Programmable Network. This affects an unknown function of the component Web UI. The manipulation leads to xml external entity reference. This vulnerability is listed as CVE-2017-6662. The attack may be initiated remotely. There is no available exploit. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Cisco Prime Infrastructure and Evolved Programmable Network (Network Management Software) (affected version unknown) and classified as critical. This issue affects an unknown functionality of the component Web UI. The manipulation with an unknown input leads to a xml external entity reference vulnerability. Using CWE to declare the problem leads to CWE-611. The product processes an XML document that can contain XML entities with URIs that resolve to documents outside of the intended sphere of control, causing the product to embed incorrect documents into its output. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

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.

The bug was discovered 06/21/2017. The weakness was presented 06/26/2017 as cisco-sa-20170621-piepnm1 as confirmed advisory (Website). It is possible to read the advisory at tools.cisco.com. The identification of this vulnerability is CVE-2017-6662 since 03/09/2017. The attack may be initiated remotely. The successful exploitation needs a simple authentication. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 5 days. During that time the estimated underground price was around $5k-$25k.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 99194†). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.7
VulDB Meta Temp Score: 6.6

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.0
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Xml external entity reference
CWE: CWE-611 / CWE-610
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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OpenVAS ID: 103402
OpenVAS Name: Cisco Prime Infrastructure XML Injection Vulnerability
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

03/09/2017 🔍
06/21/2017 +104 days 🔍
06/21/2017 +0 days 🔍
06/26/2017 +5 days 🔍
06/26/2017 +0 days 🔍
06/26/2017 +0 days 🔍
12/29/2020 +1282 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco-sa-20170621-piepnm1
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-6662 (🔍)
GCVE (CVE): GCVE-0-2017-6662
GCVE (VulDB): GCVE-100-102803
SecurityFocus: 99194 - Multiple Cisco Products XML External Entity Injection Vulnerability
SecurityTracker: 1038750

Entryinfo

Created: 06/26/2017 15:27
Updated: 12/29/2020 16:49
Changes: 06/26/2017 15:27 (67), 10/20/2019 12:22 (2), 12/29/2020 16:49 (3)
Complete: 🔍
Cache ID: 216:81B:103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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