CVE-2021-42794

Public Exploit

Description

An issue was discovered in AVEVA Edge (formerly InduSoft Web Studio) versions R2020 and prior. The application allows a client to provide a malicious connection string that could allow an adversary to port scan the LAN, depending on the hosts' responses.

5.3

CVSS

Severity: Medium

CVSS 3.1 •

EPSS 0.46%

Third-Party Advisory cisa.gov Third-Party Advisory exploit-db.com

Affected: n/a n/a

References

Link	Tags
https://www.exploit-db.com/docs/english/17254-connection-string-parameter-pollution-attacks.pdf	third party advisory vdb entry exploit
https://www.aveva.com/en/products/edge/	product
https://www.cisa.gov/news-events/ics-advisories/icsa-22-326-01	third party advisory us government resource

Frequently Asked Questions

What is the severity of CVE-2021-42794?: CVE-2021-42794 has been scored as a medium severity vulnerability.
How to fix CVE-2021-42794?: To fix CVE-2021-42794, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-42794 being actively exploited in the wild?: It is possible that CVE-2021-42794 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.

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