Cisco EPC3928 5.5.10/5.5.11/5.7.1 improper authentication

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.
6.9$0-$5k0.00

Summaryinfo

A vulnerability described as critical has been identified in Cisco EPC3928 5.5.10/5.5.11/5.7.1. The affected element is an unknown function. Executing a manipulation can lead to improper authentication. This vulnerability is handled as CVE-2015-6401. Additionally, an exploit exists.

Detailsinfo

A vulnerability was found in Cisco EPC3928 5.5.10/5.5.11/5.7.1. It has been declared as critical. This vulnerability affects an unknown code block. The manipulation with an unknown input leads to a improper authentication vulnerability. The CWE definition for the vulnerability is CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Cisco EPC3928 devices with EDVA 5.5.10, 5.5.11, and 5.7.1 allow remote attackers to bypass an intended authentication requirement and execute unspecified administrative functions via a crafted HTTP request, aka Bug ID CSCux24941.

The weakness was released 12/14/2015 as CSCux24941 as confirmed advisory (Website). The advisory is shared for download at tools.cisco.com. This vulnerability was named CVE-2015-6401 since 08/17/2015. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details are unknown but a public exploit is available.

A public exploit has been developed by Patryk Bogdan and been published 7 months after the advisory. It is possible to download the exploit at exploit-db.com. It is declared as proof-of-concept. As 0-day the estimated underground price was around $5k-$25k.

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 Exploit-DB (39904). Entries connected to this vulnerability are available at VDB-79757, VDB-88511, VDB-88512 and VDB-88513. Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 6.9

VulDB Base Score: 7.3
VulDB Temp Score: 6.9
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Improper authentication
CWE: CWE-287
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Author: Patryk Bogdan
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

Exploit Delay Time: 🔍

Timelineinfo

08/17/2015 🔍
12/13/2015 +118 days 🔍
12/14/2015 +1 days 🔍
12/14/2015 +0 days 🔍
06/07/2016 +176 days 🔍
06/07/2016 +0 days 🔍
06/22/2024 +2937 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: CSCux24941
Status: Confirmed

CVE: CVE-2015-6401 (🔍)
GCVE (CVE): GCVE-0-2015-6401
GCVE (VulDB): GCVE-100-79756
SecurityTracker: 1034347

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 12/14/2015 09:31
Updated: 06/22/2024 12:56
Changes: 12/14/2015 09:31 (43), 04/30/2018 09:37 (14), 06/30/2022 22:17 (3), 06/22/2024 12:56 (15)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Do you want to use VulDB in your project?

Use the official API to access entries easily!