2021-28841 | TRENDnet TEW-755AP/TEW-755AP2KAC/TEW-821DAP2KAC/TEW-825DAP POST Request apply_cgi ping_test null pointer dereference
| 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 (≈)
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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. |
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| 4.2 | $0-$5k | 0.30 |
A vulnerability, which was classified as problematic, was found in TRENDnet TEW-755AP, TEW-755AP2KAC, TEW-821DAP2KAC and TEW-825DAP 1.11B03. Affected is the function ping_test of the file apply_cgi of the component POST Request Handler. The manipulation with an unknown input leads to a denial of service vulnerability. CWE is classifying the issue as CWE-476. This is going to have an impact on availability. CVE summarizes:
Null Pointer Dereference vulnerability in TRENDnet TEW-755AP 1.11B03, TEW-755AP2KAC 1.11B03, TEW-821DAP2KAC 1.11B03, and TEW-825DAP 1.11B03, which could let a remote malicious user cause a denial of service by sending a POST request to apply_cgi via an action ping_test without a ping_ipaddr key.
The weakness was shared 08/11/2021. The advisory is available at github.com. This vulnerability is traded as CVE-2021-28841 since 03/19/2021. It is possible to launch the attack remotely. A authentication is needed for exploitation. Technical details are known, but there is no available exploit.
There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.
Vendor
Name
VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.2
VulDB Base Score: 4.3
VulDB Temp Score: 4.2
VulDB Vector: 🔒
VulDB Reliability: 🔍
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍
Class: Denial of service
CWE: CWE-476
ATT&CK: Unknown
Local: No
Remote: Yes
Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒
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Threat Intelligence
Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍Recommended: no mitigation known
Status: 🔍
0-Day Time: 🔒
03/19/2021 CVE assigned
08/11/2021 Advisory disclosed
08/11/2021 VulDB entry created
08/15/2021 VulDB last updateAdvisory: github.com
Status: Not defined
CVE: CVE-2021-28841 (🔒)
Created: 08/11/2021 12:20
Updated: 08/15/2021 14:52
Changes: (2) source_cve_assigned source_cve_nvd_summary
Complete: 🔍
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