Cisco IOS 5.2.0 on ASR 9000 DHCPv6 Server resource management

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.3	$5k-$25k	0.00

Summaryinfo

A vulnerability marked as problematic has been reported in Cisco IOS 5.2.0 on ASR 9000. The affected element is an unknown function of the component DHCPv6 Server. The manipulation leads to resource management. This vulnerability is listed as CVE-2015-6301. There is no available exploit.

Detailsinfo

A vulnerability was found in Cisco IOS 5.2.0 on ASR 9000 (Router Operating System) and classified as problematic. This issue affects an unknown code of the component DHCPv6 Server. The manipulation with an unknown input leads to a resource management vulnerability. Using CWE to declare the problem leads to CWE-399. Impacted is availability. The summary by CVE is:

The DHCPv6 server in Cisco IOS on ASR 9000 devices with software 5.2.0 Base allows remote attackers to cause a denial of service (process reset) via crafted packets, aka Bug ID CSCun72171.

The weakness was presented 09/20/2015 as CSCun72171 as confirmed advisory (Website). It is possible to read the advisory at tools.cisco.com. The identification of this vulnerability is CVE-2015-6301 since 08/17/2015. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 06/18/2022).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at Vulnerability Center (SBV-52828†). See VDB-77960 for similar entry. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Router Operating System

Vendor

Cisco

Name

Version

5.2.0

License

commercial

Website

Vendor: https://www.cisco.com/

CPE 2.3info

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CPE 2.2info

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CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.3

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

CVSSv2info

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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: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

08/17/2015 🔍
09/20/2015 +34 days 🔍
09/20/2015 +0 days 🔍
09/20/2015 +0 days 🔍
09/21/2015 +1 days 🔍
09/21/2015 +0 days 🔍
06/18/2022 +2462 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: CSCun72171
Status: Confirmed

CVE: CVE-2015-6301 (🔍)
GCVE (CVE): GCVE-0-2015-6301
GCVE (VulDB): GCVE-100-77963
SecurityTracker: 1033623
Vulnerability Center: 52828 - Cisco IOS 5.2.0 Base on ASR 9000 Remote DoS via Carfted Packets, Medium

See also: 🔍

Entryinfo

Created: 09/21/2015 10:19
Updated: 06/18/2022 14:21
Changes: 09/21/2015 10:19 (51), 01/02/2018 09:56 (7), 06/18/2022 14:21 (3)
Complete: 🔍
Cache ID: 216::103

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