| 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. |
|---|---|---|
| 7.0 | $0-$5k | 1.51 |
A vulnerability classified as critical was found in IBM InfoSphere Data Replication and InfoSphere Change Data Capture for zOS (Reporting Software) (the affected version is unknown). This vulnerability affects an unknown function. The manipulation with an unknown input leads to a weak authentication vulnerability. The CWE definition for the vulnerability is CWE-306. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:
IBM InfoSphere Data Replication 11.4 and IBM InfoSphere Change Data Capture for z/OS 10.2.1, under certain configurations, could allow a user to bypass authentication mechanisms using an empty password string. IBM X-Force ID: 189834
The weakness was disclosed 07/17/2021. The advisory is available at ibm.com. This vulnerability was named CVE-2020-4821 since 12/30/2019. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 07/19/2021). It is expected to see the exploit prices for this product increasing in the near future.
Upgrading eliminates this vulnerability.
The vulnerability is also documented in the vulnerability database at X-Force (189834).
Type
Vendor
Name
VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.0
VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔒
VulDB Reliability: 🔍
| 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: 🔍
Class: Weak authentication
CWE: CWE-306
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
Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍Recommended: Upgrade
Status: 🔍
0-Day Time: 🔒
Upgrade: ibm.com
12/30/2019 CVE assigned
07/17/2021 Advisory disclosed
07/17/2021 VulDB entry created
07/19/2021 VulDB last updateVendor: https://www.ibm.com/
Advisory: ibm.com
Status: Confirmed
Confirmation: 🔒
CVE: CVE-2020-4821 (🔒)
X-Force: 189834
Created: 07/17/2021 09:48
Updated: 07/19/2021 19:10
Changes: (1) source_cve_cna
Complete: 🔍
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