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

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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3.4$0-$5k0.00

Summaryinfo

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. This vulnerability affects the function upload_certificate of the file sbin/httpd of the component HTTP GET Request Handler. The manipulation of the argument first leads to null pointer dereference. This vulnerability is uniquely identified as CVE-2021-28839. No exploit exists.

Detailsinfo

A vulnerability was found in D-Link DAP-2310, DAP-2330, DAP-2360, DAP-2553, DAP-2660, DAP-2690, DAP-2695, DAP-3320 and DAP-3662. It has been rated as problematic. This issue affects the function upload_certificate of the file sbin/httpd of the component HTTP GET Request Handler. The manipulation of the argument first with an unknown input leads to a null pointer dereference vulnerability. Using CWE to declare the problem leads to 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. Impacted is availability.

The weakness was disclosed 08/11/2021. The advisory is shared at github.com. The identification of this vulnerability is CVE-2021-28839. Technical details are known, but no exploit is available. The price for an exploit might be around 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.

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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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 🔍
08/15/2021 +4 days 🔍

Sourcesinfo

Vendor: dlink.com

Advisory: github.com
Status: Not defined

CVE: CVE-2021-28839 (🔍)
GCVE (CVE): GCVE-0-2021-28839
GCVE (VulDB): GCVE-100-180557

Entryinfo

Created: 08/11/2021 13:22
Updated: 08/15/2021 17:49
Changes: 08/11/2021 13:22 (38), 08/15/2021 17:49 (2)
Complete: 🔍
Cache ID: 216::103

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