2020-4821 | IBM InfoSphere Data Replication missing authentication (XFDB-189834)
|CVSS Meta Temp Score
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|Current Exploit Price (≈)
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|CTI Interest Score
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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).
VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.0
Status: Not defined
0-Day Time: 🔒
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