| 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. |
|---|---|---|
| 8.2 | $0-$5k | 0.00 |
A vulnerability classified as critical was found in Proxygen (Firewall Software). Affected by this vulnerability is some unknown processing of the component Lifetime Management. The manipulation as part of a Request leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-416. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:
A use-after-free is possible due to an error in lifetime management in the request adaptor when a malicious client invokes request error handling in a specific sequence. This issue affects versions of proxygen prior to v2020.05.18.00.
The weakness was presented 05/18/2020 (Website). The advisory is shared at facebook.com. This vulnerability is known as CVE-2020-1897 since 12/02/2019. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available.
Upgrading to version v2020.05.18.00 eliminates this vulnerability.
Product
Type
Name
CPE 2.3
CPE 2.2
CVSSv3
VulDB Meta Base Score: 8.5VulDB Meta Temp Score: 8.2
VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔒
VulDB Reliability: 🔍
NVD Base Score: 9.8
NVD Vector: 🔒
CVSSv2
| AV | AC | Au | C | I | A |
|---|---|---|---|---|---|
| 🔍 | 🔍 | 🔍 | 🔍 | 🔍 | 🔍 |
| 🔍 | 🔍 | 🔍 | 🔍 | 🔍 | 🔍 |
| 🔍 | 🔍 | 🔍 | 🔍 | 🔍 | 🔍 |
| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
|---|---|---|---|---|---|
| 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: 🔍
NVD Base Score: 🔒
Exploiting
Class: Memory corruptionCWE: CWE-416
ATT&CK: Unknown
Local: No
Remote: Yes
Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒
| 0-Day | unlock | unlock | unlock | unlock |
|---|---|---|---|---|
| Today | unlock | unlock | unlock | unlock |
Threat Intelligence
Threat: 🔍Adversaries: 🔍
Geopolitics: 🔍
Economy: 🔍
Predictions: 🔍
Remediation: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔒
Upgrade: Proxygen v2020.05.18.00
Timeline
12/02/2019 CVE assigned05/18/2020 Advisory disclosed
05/19/2020 VulDB entry created
10/18/2020 VulDB last update
Sources
Advisory: facebook.comStatus: Not defined
Confirmation: 🔒
CVE: CVE-2020-1897 (🔒)
Entry
Created: 05/19/2020 08:12 AMUpdated: 10/18/2020 05:28 PM
Changes: (1) advisory_confirm_url
Complete: 🔍
Comments
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