VDB-149628 · CVE-2020-3927 · GCVE-0-2020-3927

ServiSign Security Plugin API Parameter file access

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.
7.7	$0-$5k	0.00

Summaryinfo

A vulnerability labeled as critical has been found in ServiSign Security Plugin. The affected element is an unknown function of the component API. The manipulation as part of Parameter results in file access. This vulnerability was named CVE-2020-3927. The attack may be performed from remote. There is no available exploit. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Detailsinfo

A vulnerability, which was classified as critical, was found in ServiSign Security Plugin (the affected version unknown). Affected is an unknown part of the component API. The manipulation as part of a Parameter leads to a file access vulnerability. CWE is classifying the issue as CWE-552. The product makes files or directories accessible to unauthorized actors, even though they should not be. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

An arbitrary-file-access vulnerability exists in ServiSign security plugin, as long as the attackers learn the specific API function, they may access arbitrary files on target system via crafted API parameter.

The weakness was presented 02/03/2020. This vulnerability is traded as CVE-2020-3927. 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 MITRE ATT&CK project declares the attack technique as T1083.

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

See VDB-149627 and VDB-149626 for similar entries. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Name

ServiSign Security Plugin

CPE 2.3info

🔍

CPE 2.2info

🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.7
VulDB Meta Temp Score: 7.7

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

NVD Base Score: 7.5
NVD Vector: 🔍

CNA Base Score: 8.3
CNA Vector (TWCERT/CC): 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: File access
CWE: CWE-552 / CWE-425
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

12/20/2019 🔍
02/03/2020 +45 days 🔍
02/04/2020 +1 days 🔍
03/28/2024 +1514 days 🔍

Sourcesinfo

Advisory: tvn.twcert.org.tw
Status: Not defined

CVE: CVE-2020-3927 (🔍)
GCVE (CVE): GCVE-0-2020-3927
GCVE (VulDB): GCVE-100-149628
See also: 🔍

Entryinfo

Created: 02/04/2020 10:36 AM
Updated: 03/28/2024 07:00 AM
Changes: 02/04/2020 10:36 AM (35), 02/04/2020 10:41 AM (16), 03/28/2024 06:52 AM (18), 03/28/2024 07:00 AM (12)
Complete: 🔍
Cache ID: 244:711:40