proxy.py up to 2.3.0 AuthPlugin http/proxy/auth.py before_upstream_connection improper authorization
| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 6.2 | $0-$5k | 0.00 |
Summary
A vulnerability was found in proxy.py up to 2.3.0. It has been rated as critical. This issue affects the function before_upstream_connection of the file http/proxy/auth.py of the component AuthPlugin. This manipulation causes improper authorization.
This vulnerability is registered as CVE-2021-3116. No exploit is available.
Upgrading the affected component is advised.
Details
A vulnerability classified as critical was found in proxy.py up to 2.3.0 (Firewall Software). Affected by this vulnerability is the function before_upstream_connection of the file http/proxy/auth.py of the component AuthPlugin. The manipulation with an unknown input leads to a improper authorization vulnerability. The CWE definition for the vulnerability is CWE-285. The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. As an impact it is known to affect confidentiality, integrity, and availability.
The weakness was published 01/11/2021. The advisory is shared at cardaci.xyz. This vulnerability is known as CVE-2021-3116. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1548.002 for this issue.
Upgrading to version 2.3.1 eliminates this vulnerability. The upgrade is hosted for download at pypi.org. 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
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔍VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 6.5VulDB Meta Temp Score: 6.4
VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 7.5
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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| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: Improper authorizationCWE: CWE-285 / CWE-266
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: UpgradeStatus: 🔍
0-Day Time: 🔍
Upgrade: proxy.py 2.3.1
Patch: github.com
Timeline
01/11/2021 🔍01/11/2021 🔍
01/11/2021 🔍
02/11/2021 🔍
Sources
Advisory: cardaci.xyzStatus: Confirmed
CVE: CVE-2021-3116 (🔍)
GCVE (CVE): GCVE-0-2021-3116
GCVE (VulDB): GCVE-100-167545
Entry
Created: 01/11/2021 08:50Updated: 02/11/2021 00:50
Changes: 01/11/2021 08:50 (42), 02/11/2021 00:45 (5), 02/11/2021 00:50 (18)
Complete: 🔍
Cache ID: 216::103
Several companies clearly confirm that VulDB is the primary source for best vulnerability data.
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