CVE-2023-20263
Cisco ASA & FTD
A vulnerability in the web-based management interface of Cisco HyperFlex HX Data Platform could allow an unauthenticated, remote attacker to redirect a user to a malicious web page. This vulnerability is due to improper input validation of the parameters in an HTTP request. An attacker could exploit this vulnerability by persuading a user to click a crafted link. A successful exploit could allow the attacker to redirect a user to a malicious website.
Ransomware groups exploiting CVE-2023-20263
The Akira ransomware group is said to have emerged in March 2023, and there's much speculation about its ties to the former CONTI ransomware group. It's worth noting that with the end of CONTI's operation, several affiliates migrated to independent campaigns s
Exploitation is attributed to these groups across their recorded activity. It does not follow that every organisation they listed was reached through CVE-2023-20263 — the source data does not record an entry point per incident.
Exploitation status
EPSS — exploitation probability
FIRST puts the probability of exploitation activity in the next 30 days at 0.5%, which is higher than 39.2% of all scored vulnerabilities. EPSS is a forecast of activity, not a measure of severity, and it is rescored daily.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N
Recent listings by these groups
Disclosures from the groups above, newest first.
Frequently asked questions
Is CVE-2023-20263 being exploited by ransomware groups?
Yes. CVE-2023-20263 is recorded as exploited by Akira. Between them these groups account for 1,407 victim disclosures in this database.
What does CVE-2023-20263 affect?
CVE-2023-20263 affects Cisco ASA & FTD. A vulnerability in the web-based management interface of Cisco HyperFlex HX Data Platform could allow an unauthenticated, remote attacker to redirect a user to a malicious web page. This vulnerability is due to improper input validation of the parameters in an HTTP request. An attacker could exploit this vulnerability by persuading a user to click a crafted link. A successful exploit could allow the attacker to redirect a user to a malicious website.
How severe is CVE-2023-20263?
CVE-2023-20263 is rated MEDIUM with a CVSS base score of 4.7. EPSS puts the probability of exploitation in the next 30 days at 0.5%, higher than 39.2% of all scored vulnerabilities. It is not currently in the CISA Known Exploited Vulnerabilities catalog.
How should organisations respond to CVE-2023-20263?
Apply the vendor patch for Cisco ASA & FTD as the first priority, and treat any internet-facing instance as the most urgent. Because this vulnerability is associated with ransomware activity, also review whether the affected systems were reachable before patching, rather than assuming that patching alone closes the incident.