VDB-111467 · CVE-2018-5259 · GCVE-0-2018-5259

Discuz! DiscuzX X3.4 Attachment aid 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.
7.5	$0-$5k	0.00

Summaryinfo

A vulnerability classified as critical has been found in Discuz! DiscuzX X3.4. This issue affects some unknown processing of the component Attachment Handler. The manipulation of the argument aid leads to access control. This vulnerability is uniquely identified as CVE-2018-5259. The attack is possible to be carried out remotely. No exploit exists.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Discuz! DiscuzX X3.4. This issue affects some unknown processing of the component Attachment Handler. The manipulation of the argument aid with an unknown input 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, integrity, and availability. The summary by CVE is:

Discuz! DiscuzX X3.4 allows remote authenticated users to bypass intended attachment-deletion restrictions via a modified aid parameter.

The bug was discovered 01/07/2018. The weakness was disclosed 01/08/2018 (Website). It is possible to read the advisory at whsgwl.net. The identification of this vulnerability is CVE-2018-5259 since 01/07/2018. The attack may be initiated remotely. Required for exploitation is a simple authentication. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1068 according to MITRE ATT&CK.

The vulnerability was handled as a non-public zero-day exploit for at least 1 days. During that time the estimated underground price was around $0-$5k.

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

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

Productinfo

Vendor

Discuz!

Name

DiscuzX

Version

X3.4

CPE 2.3info

🔍

CPE 2.2info

🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 7.6

VulDB Base Score: 6.3
VulDB Temp Score: 6.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

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-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/07/2018 🔍
01/07/2018 +0 days 🔍
01/08/2018 +1 days 🔍
01/08/2018 +0 days 🔍
01/08/2018 +0 days 🔍
12/20/2019 +711 days 🔍

Sourcesinfo

Advisory: whsgwl.net
Status: Not defined

CVE: CVE-2018-5259 (🔍)
GCVE (CVE): GCVE-0-2018-5259
GCVE (VulDB): GCVE-100-111467

Entryinfo

Created: 01/08/2018 15:20
Updated: 12/20/2019 11:03
Changes: 01/08/2018 15:20 (57), 12/20/2019 11:03 (1)
Complete: 🔍
Cache ID: 216::103