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Medium severity · published Dec 16, 2023
CVE-2021-42794
An issue was discovered in AVEVA Edge (formerly InduSoft Web Studio) versions R2020 and prior
5.3
CVSS
1.2%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.2% · higher than 68% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
ED
Edge · Aveva
before 2020; 2020; 2020; 2020 · source: NVD
Affected product
ED
Edge
Aveva
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-42794
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-42794
Product
https://www.aveva.com/en/products/edge/
Third Party Advisory
https://www.cisa.gov/news-events/ics-advisories/icsa-22-326-01
Exploit
https://www.exploit-db.com/docs/english/17254-connection-string-parameter-pollution-attacks.pdf
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