VDB-95792 · CVE-2017-5539 · BID 95700

b2evolution 6.8.4-stable Patch CVE-2017-5480 access control

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.
7.8$0-$5k0.00

Summaryinfo

A vulnerability was found in b2evolution 6.8.4-stable and classified as critical. This issue affects some unknown processing of the component Patch CVE-2017-5480. Such manipulation with the input ..\/ leads to access control. This vulnerability is uniquely identified as CVE-2017-5539. The attack can be launched remotely. No exploit exists.

Detailsinfo

A vulnerability was found in b2evolution 6.8.4-stable (Content Management System) and classified as critical. Affected by this issue is an unknown code of the component Patch CVE-2017-5480. The manipulation with the input value ..\/ leads to a access control vulnerability. Using CWE to declare the problem leads to CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. Impacted is confidentiality, and integrity. CVE summarizes:

The patch for directory traversal (CVE-2017-5480) in b2evolution version 6.8.4-stable has a bypass vulnerability. An attacker can use ..\/ to bypass the filter rule. Then, this attacker can exploit this vulnerability to delete or read any files on the server. It can also be used to determine whether a file exists.

The bug was discovered 01/23/2017. The weakness was disclosed 01/23/2017 (Website). The advisory is shared for download at b2evolution.net. This vulnerability is handled as CVE-2017-5539 since 01/19/2017. The attack may be launched remotely. No form of authentication is required for exploitation. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1068.

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 95700†). The entry VDB-95794 is pretty similar. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.8
VulDB Meta Temp Score: 7.8

VulDB Base Score: 6.5
VulDB Temp Score: 6.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.1
NVD Vector: 🔍

CVSSv2info

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

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

NVD Base Score: 🔍

Exploitinginfo

Class: Access control
CWE: CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Patch: github.com

Timelineinfo

01/19/2017 🔍
01/23/2017 +4 days 🔍
01/23/2017 +0 days 🔍
01/23/2017 +0 days 🔍
01/23/2017 +0 days 🔍
01/23/2017 +0 days 🔍
11/03/2022 +2110 days 🔍

Sourcesinfo

Product: github.com

Advisory: e35f7c195d8c1103d2d981a48cda5ab45ecac48a
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-5539 (🔍)
GCVE (CVE): GCVE-0-2017-5539
GCVE (VulDB): GCVE-100-95792
SecurityFocus: 95700 - b2evolution Incomplete Fix CVE-2017-5539 Directory Traversal Vulnerability
OSVDB: - CVE-2017-5539 - b2evolution - Directory Traversal Issue

See also: 🔍

Entryinfo

Created: 01/23/2017 16:25
Updated: 11/03/2022 08:19
Changes: 01/23/2017 16:25 (58), 07/30/2020 09:54 (6), 11/03/2022 08:19 (4)
Complete: 🔍
Cache ID: 216:060:103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Do you need the next level of professionalism?

Upgrade your account now!