D-Link DAP-3662 HTTP GET Request sbin/httpd upload_config null pointer dereference

CVSS Meta Temp Score
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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
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3.4$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic was found in D-Link DAP-2310, DAP-2330, DAP-2360, DAP-2553, DAP-2660, DAP-2690, DAP-2695, DAP-3320 and DAP-3662. This issue affects the function upload_config of the file sbin/httpd of the component HTTP GET Request Handler. The manipulation results in null pointer dereference. This vulnerability was named CVE-2021-28840. There is no available exploit.

Detailsinfo

A vulnerability classified as problematic has been found in D-Link DAP-2310, DAP-2330, DAP-2360, DAP-2553, DAP-2660, DAP-2690, DAP-2695, DAP-3320 and DAP-3662. Affected is the function upload_config of the file sbin/httpd of the component HTTP GET Request Handler. The manipulation with an unknown input leads to a null pointer dereference vulnerability. CWE is classifying the issue as CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. This is going to have an impact on availability.

The weakness was presented 08/11/2021. The advisory is available at github.com. This vulnerability is traded as CVE-2021-28840. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 08/11/2021).

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

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Productinfo

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.5
VulDB Meta Temp Score: 3.4

VulDB Base Score: 3.5
VulDB Temp Score: 3.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Partially

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

03/19/2021 🔍
08/11/2021 +144 days 🔍
08/11/2021 +0 days 🔍
08/16/2021 +5 days 🔍

Sourcesinfo

Vendor: dlink.com

Advisory: github.com
Status: Not defined

CVE: CVE-2021-28840 (🔍)
GCVE (CVE): GCVE-0-2021-28840
GCVE (VulDB): GCVE-100-180558

Entryinfo

Created: 08/11/2021 13:23
Updated: 08/16/2021 06:47
Changes: 08/11/2021 13:23 (37), 08/16/2021 06:47 (2)
Complete: 🔍
Cache ID: 216::103

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