Cisco Firepower System Software up to 6.1.0 Web Content Blocker input validation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.3$5k-$25k0.00

Summaryinfo

A vulnerability classified as critical was found in Cisco Firepower System Software 5.3.0/5.4.0/6.0.0/6.0.1/6.1.0. This affects an unknown part of the component Web Content Blocker. The manipulation results in input validation. This vulnerability is identified as CVE-2017-3814. The attack can be executed remotely. There is not any exploit available.

Detailsinfo

A vulnerability classified as critical has been found in Cisco Firepower System Software 5.3.0/5.4.0/6.0.0/6.0.1/6.1.0 (Firewall Software). Affected is an unknown function of the component Web Content Blocker. The manipulation with an unknown input leads to a input validation vulnerability. CWE is classifying the issue as CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

A vulnerability in Cisco Firepower System Software could allow an unauthenticated, remote attacker to maliciously bypass the appliance's ability to block certain web content, aka a URL Bypass. More Information: CSCvb93980. Known Affected Releases: 5.3.0 5.4.0 6.0.0 6.0.1 6.1.0.

The bug was discovered 02/01/2017. The weakness was released 02/03/2017 with Cisco as CSCvb93980 as confirmed advisory (Website). The advisory is shared for download at securityfocus.com. This vulnerability is traded as CVE-2017-3814 since 12/21/2016. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $5k-$25k (estimation calculated on 11/26/2024).

The vulnerability was handled as a non-public zero-day exploit for at least 2 days. During that time 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 SecurityFocus (BID 95942†). Once again VulDB remains the best source for vulnerability data.

Productinfo

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

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

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

NVD Base Score: 5.8
NVD Vector: 🔍

CNA Base Score: 5.8
CNA Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
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 Firepower URL Bypass Vulnerability
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

12/21/2016 🔍
02/01/2017 +42 days 🔍
02/01/2017 +0 days 🔍
02/03/2017 +2 days 🔍
02/03/2017 +0 days 🔍
02/03/2017 +0 days 🔍
11/26/2024 +2853 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: CSCvb93980⛔
Organization: Cisco
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-3814 (🔍)
GCVE (CVE): GCVE-0-2017-3814
GCVE (VulDB): GCVE-100-96516
SecurityFocus: 95942 - Cisco Firepower System Software CVE-2017-3814 Remote Security Bypass Vulnerability
OSVDB: - CVE-2017-3814 - Cisco - Firepower System Software - URL Bypass Issue

Entryinfo

Created: 02/03/2017 17:01
Updated: 11/26/2024 18:18
Changes: 02/03/2017 17:01 (64), 08/10/2020 11:20 (7), 11/26/2024 18:18 (27)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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