DrayTek Vigor3900/Vigor2960/Vigor300B up to 1.5.0 cvmcfgupload Shell Metacharacter os command injection

CVSS Meta Temp Score
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CTI Interest Score
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8.9$0-$5k0.00

Summaryinfo

A vulnerability has been found in DrayTek Vigor3900, Vigor2960 and Vigor300B up to 1.5.0 and classified as critical. Impacted is an unknown function of the file cgi-bin/mainfunction.cgi/cvmcfgupload. Performing a manipulation as part of Shell Metacharacter results in os command injection. This vulnerability was named CVE-2020-15415. The attack may be initiated remotely. In addition, an exploit is available. The affected component should be upgraded.

Detailsinfo

A vulnerability, which was classified as critical, was found in DrayTek Vigor3900, Vigor2960 and Vigor300B up to 1.5.0 (Router Operating System). This affects an unknown part of the file cgi-bin/mainfunction.cgi/cvmcfgupload. The manipulation as part of a Shell Metacharacter leads to a os command injection vulnerability. CWE is classifying the issue as CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

On DrayTek Vigor3900, Vigor2960, and Vigor300B devices before 1.5.1, cgi-bin/mainfunction.cgi/cvmcfgupload allows remote command execution via shell metacharacters in a filename when the text/x-python-script content type is used, a different issue than CVE-2020-14472.

The weakness was presented 06/30/2020. This vulnerability is uniquely identified as CVE-2020-15415 since 06/30/2020. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details and a exploit are known. The attack technique deployed by this issue is T1202 according to MITRE ATT&CK.

It is declared as attacked. The CISA Known Exploited Vulnerabilities Catalog lists this issue since 09/30/2024 with a due date of 10/21/2024:

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Upgrading to version 1.5.1 eliminates this vulnerability.

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.0
VulDB Meta Temp Score: 8.9

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CNA Base Score: 9.8
CNA Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Os command injection
CWE: CWE-78 / CWE-77 / CWE-74
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Attacked

EPSS Score: 🔍
EPSS Percentile: 🔍

KEV Added: 🔍
KEV Due: 🔍
KEV Remediation: 🔍
KEV Ransomware: 🔍
KEV Notice: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Vigor3900/Vigor2960/Vigor300B 1.5.1

Timelineinfo

06/30/2020 🔍
06/30/2020 +0 days 🔍
07/01/2020 +1 days 🔍
10/04/2024 +1556 days 🔍

Sourcesinfo

Status: Not defined

CVE: CVE-2020-15415 (🔍)
GCVE (CVE): GCVE-0-2020-15415
GCVE (VulDB): GCVE-100-157503
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 07/01/2020 10:56
Updated: 10/04/2024 18:57
Changes: 07/01/2020 10:56 (38), 07/01/2020 11:01 (18), 10/01/2024 03:13 (18), 10/01/2024 05:16 (13), 10/04/2024 18:57 (11)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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