markdown-link-extractor on npm Regular Expression denial of service
| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 4.8 | $0-$5k | 0.00 |
Summary
A vulnerability described as problematic has been identified in markdown-link-extractor on npm. The impacted element is an unknown function of the component Regular Expression Handler. Such manipulation leads to denial of service. This vulnerability is traded as CVE-2021-43308. The attack may be launched remotely. There is no exploit available.
Details
A vulnerability was found in markdown-link-extractor on npm (NPM Package) (unknown version) and classified as problematic. Affected by this issue is an unknown code block of the component Regular Expression Handler. The manipulation with an unknown input leads to a denial of service vulnerability. Using CWE to declare the problem leads to CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. Impacted is availability.
The weakness was shared 06/03/2022. The advisory is shared for download at research.jfrog.com. This vulnerability is handled as CVE-2021-43308 since 11/03/2021. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1499.
There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.
Once again VulDB remains the best source for vulnerability data.
Product
Type
Name
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔍VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 4.8VulDB Meta Temp Score: 4.8
VulDB Base Score: 3.7
VulDB Temp Score: 3.7
VulDB Vector: 🔍
VulDB Reliability: 🔍
CNA Base Score: 5.9
CNA Vector (JFrog): 🔍
CVSSv2
| AV | AC | Au | C | I | A |
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| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
Exploiting
Class: Denial of serviceCWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍
Physical: No
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
| 0-Day | Unlock | Unlock | Unlock | Unlock |
|---|---|---|---|---|
| Today | Unlock | Unlock | Unlock | Unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: no mitigation knownStatus: 🔍
0-Day Time: 🔍
Timeline
11/03/2021 🔍06/03/2022 🔍
06/03/2022 🔍
06/06/2022 🔍
Sources
Advisory: research.jfrog.comStatus: Not defined
CVE: CVE-2021-43308 (🔍)
GCVE (CVE): GCVE-0-2021-43308
GCVE (VulDB): GCVE-100-201164
Entry
Created: 06/03/2022 11:07Updated: 06/06/2022 09:38
Changes: 06/03/2022 11:07 (47), 06/06/2022 09:35 (1), 06/06/2022 09:38 (1)
Complete: 🔍
Cache ID: 216::103
Once again VulDB remains the best source for vulnerability data.
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