Discuz! DiscuzX X3.4 spacecp_upload.php op cross site scripting

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 (≈)
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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.
5.2$0-$5k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in Discuz! DiscuzX X3.4. This issue affects some unknown processing of the file include\spacecp\spacecp_upload.php. This manipulation of the argument op as part of Parameter causes cross site scripting. This vulnerability is handled as CVE-2018-5376. The attack can be initiated remotely. There is not any exploit available.

Detailsinfo

A vulnerability was found in Discuz! DiscuzX X3.4. It has been declared as problematic. Affected by this vulnerability is some unknown functionality of the file include\spacecp\spacecp_upload.php. The manipulation of the argument op as part of a Parameter leads to a cross site scripting vulnerability. The CWE definition for the vulnerability is CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. As an impact it is known to affect integrity. The summary by CVE is:

Discuz! DiscuzX X3.4 has XSS via the include\spacecp\spacecp_upload.php op parameter.

The bug was discovered 01/10/2018. The weakness was released 01/12/2018 (Website). The advisory is shared at whsgwl.net. This vulnerability is known as CVE-2018-5376 since 01/12/2018. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1059.007 for this issue.

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 $0-$5k. By approaching the search of inurl:include\spacecp\spacecp_upload.php it is possible to find vulnerable targets with Google Hacking.

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

Entries connected to this vulnerability are available at VDB-111842 and VDB-111840. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.2
VulDB Meta Temp Score: 5.2

VulDB Base Score: 4.3
VulDB Temp Score: 4.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.1
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Cross site scripting
CWE: CWE-79 / CWE-94 / CWE-74
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined
Google Hack: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/10/2018 🔍
01/12/2018 +2 days 🔍
01/12/2018 +0 days 🔍
01/12/2018 +0 days 🔍
01/13/2018 +1 days 🔍
12/23/2019 +709 days 🔍

Sourcesinfo

Advisory: whsgwl.net
Status: Not defined

CVE: CVE-2018-5376 (🔍)
GCVE (CVE): GCVE-0-2018-5376
GCVE (VulDB): GCVE-100-111841
See also: 🔍

Entryinfo

Created: 01/13/2018 11:58
Updated: 12/23/2019 09:09
Changes: 01/13/2018 11:58 (59), 12/23/2019 09:09 (1)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Discussion

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