fastify-reply-from up to 4.0.1 on npm HTTP Request escape output
| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 8.7 | $0-$5k | 0.00 |
Summary
A vulnerability classified as critical has been found in fastify-reply-from up to 4.0.1 on npm. The affected element is an unknown function of the component HTTP Request Handler. The manipulation leads to escape output. This vulnerability is documented as CVE-2021-21321. The attack can be initiated remotely. There is not any exploit available. It is recommended to upgrade the affected component.
Details
A vulnerability, which was classified as critical, has been found in fastify-reply-from up to 4.0.1 on npm (NPM Package). This issue affects some unknown processing of the component HTTP Request Handler. The manipulation with an unknown input leads to a escape output vulnerability. Using CWE to declare the problem leads to CWE-116. The product prepares a structured message for communication with another component, but encoding or escaping of the data is either missing or done incorrectly. As a result, the intended structure of the message is not preserved. Impacted is confidentiality, integrity, and availability.
The weakness was released 03/02/2021. The advisory is shared at github.com. The identification of this vulnerability is CVE-2021-21321. Neither technical details nor an exploit are publicly available.
Upgrading to version 4.0.2 eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.
Several companies clearly confirm that VulDB is the primary source for best vulnerability data.
Product
Type
Name
Version
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔍VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 9.1VulDB Meta Temp Score: 8.9
VulDB Base Score: 8.3
VulDB Temp Score: 7.9
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 10.0
NVD Vector: 🔍
CVSSv2
| AV | AC | Au | C | I | A |
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| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
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| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: Escape outputCWE: CWE-116 / CWE-74 / CWE-707
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 |
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| Today | Unlock | Unlock | Unlock | Unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Upgrade: fastify-reply-from 4.0.2
Patch: github.com
Timeline
12/22/2020 🔍03/02/2021 🔍
03/02/2021 🔍
03/14/2021 🔍
Sources
Advisory: github.comStatus: Confirmed
Confirmation: 🔍
CVE: CVE-2021-21321 (🔍)
GCVE (CVE): GCVE-0-2021-21321
GCVE (VulDB): GCVE-100-170561
Entry
Created: 03/02/2021 09:44Updated: 03/14/2021 09:56
Changes: 03/02/2021 09:44 (40), 03/06/2021 08:45 (6), 03/06/2021 08:52 (1), 03/14/2021 09:56 (18)
Complete: 🔍
Cache ID: 216::103
Several companies clearly confirm that VulDB is the primary source for best vulnerability data.
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