VDB-101564 · CVE-2017-6653 · BID 98536

Cisco Identity Services Engine 2.1(0.474) TCP Throttling Connection Request resource management

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.2$0-$5k0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in Cisco Identity Services Engine 2.1(0.474). Affected by this issue is some unknown functionality of the component TCP Throttling. Such manipulation as part of Connection Request leads to resource management. This vulnerability is traded as CVE-2017-6653. The attack may be launched remotely. There is no exploit available. Restrictive firewalling should be applied.

Detailsinfo

A vulnerability was found in Cisco Identity Services Engine 2.1(0.474) (Policy Management Software). It has been rated as problematic. Affected by this issue is an unknown functionality of the component TCP Throttling. The manipulation as part of a Connection Request leads to a resource management vulnerability. Using CWE to declare the problem leads to CWE-399. Impacted is availability. CVE summarizes:

A vulnerability in the TCP throttling process for the GUI of the Cisco Identity Services Engine (ISE) 2.1(0.474) could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device where the ISE GUI may fail to respond to new or established connection requests. The vulnerability is due to insufficient TCP rate limiting protection on the GUI. An attacker could exploit this vulnerability by sending the affected device a high rate of TCP connections to the GUI. An exploit could allow the attacker to cause the GUI to stop responding while the high rate of connections is in progress. Cisco Bug IDs: CSCvc81803.

The bug was discovered 05/17/2017. The weakness was shared 05/22/2017 with Cisco as cisco-sa-20170517-ise as confirmed advisory (Website). The advisory is shared for download at tools.cisco.com. This vulnerability is handled as CVE-2017-6653 since 03/09/2017. The attack may be launched remotely. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 4 days. During that time the estimated underground price was around $5k-$25k.

Addressing this vulnerability is possible by firewalling .

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 98536†). Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
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: Resource management
CWE: CWE-399 / CWE-404
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: 103403
OpenVAS Name: Cisco Identity Services Engine GUI Denial of Service Vulnerability
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Firewall
Status: 🔍

0-Day Time: 🔍

Timelineinfo

03/09/2017 🔍
05/17/2017 +69 days 🔍
05/17/2017 +0 days 🔍
05/21/2017 +4 days 🔍
05/22/2017 +1 days 🔍
05/22/2017 +0 days 🔍
12/25/2020 +1313 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco-sa-20170517-ise
Researcher: Cisco
Organization: Cisco
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-6653 (🔍)
GCVE (CVE): GCVE-0-2017-6653
GCVE (VulDB): GCVE-100-101564
SecurityFocus: 98536 - Cisco Identity Services Engine CVE-2017-6653 Denial of Service Vulnerability
OSVDB: - CVE-2017-6653 - Cisco - Identity Services Engine - Medium
SecurityTracker: 1038516

Entryinfo

Created: 05/22/2017 11:18
Updated: 12/25/2020 10:50
Changes: 05/22/2017 11:18 (67), 10/01/2020 10:51 (6), 12/25/2020 10:48 (2), 12/25/2020 10:50 (1)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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