D-Link DSL-320B-D1 up to EU_1.25 login.xgi user/pass buffer overflow

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CVSS Meta Temp Score
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CTI Interest Score
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6.8$5k-$25k0.74

A vulnerability has been found in D-Link DSL-320B-D1 up to EU_1.25 and classified as critical. Affected by this vulnerability is an unknown functionality of the file login.xgi. The manipulation of the argument user/pass with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-120. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

** UNSUPPORTED WHEN ASSIGNED ** D-Link DSL-320B-D1 devices through EU_1.25 are prone to multiple Stack-Based Buffer Overflows that allow unauthenticated remote attackers to take over a device via the login.xgi user and pass parameters. NOTE: This vulnerability only affects products that are no longer supported by the maintainer.

The weakness was shared 04/07/2021 as SAP10216. It is possible to read the advisory at supportannouncement.us.dlink.com. This vulnerability is known as CVE-2021-26709 since 02/05/2021. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 04/11/2021).

The problem might be mitigated by replacing the product with as an alternative.

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VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 6.8

VulDB Base Score: 7.3
VulDB Temp Score: 6.8
VulDB Vector: 🔒
VulDB Reliability: 🔍

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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfoedit

Class: Memory corruption
CWE: CWE-120
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

Price Prediction: 🔍
Current Price Estimation: 🔒

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Countermeasuresinfoedit

Recommended: Alternative
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0-Day Time: 🔒

Timelineinfoedit

02/05/2021 CVE assigned
04/07/2021 +60 days Advisory disclosed
04/07/2021 +0 days VulDB entry created
04/11/2021 +4 days VulDB last update

Sourcesinfoedit

Vendor: https://www.dlink.com/

Advisory: SAP10216
Status: Not defined

CVE: CVE-2021-26709 (🔒)

Entryinfoedit

Created: 04/07/2021 02:44 PM
Updated: 04/11/2021 02:48 PM
Changes: (5) source_cve_assigned source_cve_nvd_summary vulnerability_cvss2_vuldb_tempscore vulnerability_cvss3_vuldb_tempscore vulnerability_cvss3_meta_tempscore
Complete: 🔍

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