2021-21820 | D-Link DIR-3040 Libcli Test Environment hard-coded password (TALOS-2021-1285)
| CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system. |
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
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability. |
|---|---|---|
| 7.1 | $5k-$25k | 0.67 |
A vulnerability, which was classified as critical, has been found in D-Link DIR-3040 1.13B03 (Router Operating System). Affected by this issue is some unknown processing of the component Libcli Test Environment. The manipulation with an unknown input leads to a weak authentication vulnerability. Using CWE to declare the problem leads to CWE-259. Impacted is confidentiality, integrity, and availability. CVE summarizes:
A hard-coded password vulnerability exists in the Libcli Test Environment functionality of D-LINK DIR-3040 1.13B03. A specially crafted network request can lead to code execution. An attacker can send a sequence of requests to trigger this vulnerability.
The weakness was shared 07/16/2021 as TALOS-2021-1285. The advisory is available at talosintelligence.com. This vulnerability is handled as CVE-2021-21820 since 01/04/2021. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $5k-$25k at the moment (estimation calculated on 07/19/2021).
There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.
Type
Vendor
Name
VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.1
VulDB Base Score: 7.3
VulDB Temp Score: 7.1
VulDB Vector: 🔒
VulDB Reliability: 🔍
| AV | AC | Au | C | I | A |
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| 🔍 | 🔍 | 🔍 | 🔍 | 🔍 | 🔍 |
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| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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| unlock | unlock | unlock | unlock | unlock | unlock |
| unlock | unlock | unlock | unlock | unlock | unlock |
| unlock | unlock | unlock | unlock | unlock | unlock |
VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍
Class: Weak authentication
CWE: CWE-259
ATT&CK: Unknown
Local: No
Remote: Yes
Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒
| 0-Day | unlock | unlock | unlock | unlock |
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| Today | unlock | unlock | unlock | unlock |
Threat Intelligence
Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍Recommended: no mitigation known
Status: 🔍
0-Day Time: 🔒
01/04/2021 CVE assigned
07/16/2021 Advisory disclosed
07/16/2021 VulDB entry created
07/19/2021 VulDB last updateVendor: https://www.dlink.com/
Advisory: TALOS-2021-1285
Status: Not defined
CVE: CVE-2021-21820 (🔒)
Created: 07/16/2021 17:08
Updated: 07/19/2021 17:34
Changes: (2) source_cve_assigned source_cve_nvd_summary
Complete: 🔍
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