D-Link DIR-842 REVC v3.13B09 HOTFIX /MTFWU strcpy LOGINPASSWORD out-of-bounds write

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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8.5$5k-$25k0.00

Summaryinfo

A vulnerability classified as critical has been found in D-Link DIR-842 REVC v3.13B09 HOTFIX. This issue affects the function strcpy of the file /MTFWU. This manipulation of the argument LOGINPASSWORD as part of POST Request causes out-of-bounds write. This vulnerability is handled as CVE-2020-8962. The attack can be initiated remotely. There is not any exploit available.

Detailsinfo

A vulnerability classified as critical was found in D-Link DIR-842 REVC v3.13B09 HOTFIX (Router Operating System). Affected by this vulnerability is the function strcpy of the file /MTFWU. The manipulation of the argument LOGINPASSWORD as part of a POST Request leads to a out-of-bounds write vulnerability. The CWE definition for the vulnerability is CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

A stack-based buffer overflow was found on the D-Link DIR-842 REVC with firmware v3.13B09 HOTFIX due to the use of strcpy for LOGINPASSWORD when handling a POST request to the /MTFWU endpoint.

The weakness was released 02/13/2020. This vulnerability is known as CVE-2020-8962 since 02/13/2020. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details are known, but no exploit is available. The price for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 02/13/2020).

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

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

Productinfo

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Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.5
VulDB Meta Temp Score: 8.5

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

NVD Base Score: 9.8
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: Out-of-bounds write
CWE: CWE-787 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

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

02/13/2020 🔍
02/13/2020 +0 days 🔍
02/13/2020 +0 days 🔍
03/31/2024 +1508 days 🔍

Sourcesinfo

Vendor: dlink.com

Advisory: ctrsec.io
Status: Not defined

CVE: CVE-2020-8962 (🔍)
GCVE (CVE): GCVE-0-2020-8962
GCVE (VulDB): GCVE-100-150121

Entryinfo

Created: 02/13/2020 18:54
Updated: 03/31/2024 08:55
Changes: 02/13/2020 18:54 (38), 02/13/2020 18:59 (18), 03/31/2024 08:55 (17)
Complete: 🔍
Cache ID: 216::103

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

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