CVE-2023-45249
About
Remote command execution due to use of default passwords. The following products are affected: Acronis Cyber Infrastructure (ACI) before build 5.0.1-61, Acronis Cyber Infrastructure (ACI) before build 5.1.1-71, Acronis Cyber Infrastructure (ACI) before build 5.2.1-69, Acronis Cyber Infrastructure (ACI) before build 5.3.1-53, Acronis Cyber Infrastructure (ACI) before build 5.4.4-132.
Rainforest analyst review
Acronis Cyber Infrastructure ships with default passwords on certain accounts, and those credentials are usable remotely. An attacker who knows the built-in defaults — which are, by definition, public — authenticates against an exposed ACI instance and, from that access, runs commands on the system. There is no exploitation cleverness required: it is unchanged shipped credentials on a network-reachable service, which is why it rates as unauthenticated remote command execution in practice.
ACI is hyperconverged storage-and-compute infrastructure, so a compromised node is not a leaf system but part of the platform other workloads and backups depend on, making it a high-leverage target for data theft or destruction. This flaw was added to CISA's KEV catalog on evidence of in-the-wild exploitation, so exposed and un-updated builds should be treated as at active risk. Update to the fixed builds Acronis lists for each branch (through 5.4.4-132), and critically, rotate any account still on a default or shipped password — patching the version does not help if the weak credential remains in place. Keep management interfaces confined to trusted networks.
References
Related CVEs
No related CVEs.
Frequently asked questions
What is CVE-2023-45249?
Remote command execution due to use of default passwords. The following products are affected: Acronis Cyber Infrastructure (ACI) before build 5.0.1-61, Acronis Cyber Infrastructure (ACI) before build 5.1.1-71, Acronis Cyber Infrastructure (ACI) before build 5.2.1-69, Acronis Cyber Infrastructure (ACI) before build 5.3.1-53, Acronis Cyber Infrastructure (ACI) before build 5.4.4-132.
How severe is CVE-2023-45249?
CVE-2023-45249 carries a CVSS 3.1 base score of 9.8, rated critical. On the Rainforest Risk Index — which weighs the severity alongside how easy the flaw is to reach and how broad its impact is — it scores 99 out of 100, in the critical band.
How is CVE-2023-45249 exploited?
According to the CVSS vector (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H): attack vector Network, attack complexity Low, privileges required None, user interaction None. Impact on confidentiality High, integrity High and availability High.
Which products are affected by CVE-2023-45249?
Public advisories list the following as affected: cyber infrastructure. Check the references on this page for the exact versions each vendor confirms.
How do I fix CVE-2023-45249?
Apply the fix the vendor published — the references on this page link to the primary advisories and patches. When patching can't happen right away, reduce the exposure of the affected component and watch it for exploitation attempts. Rainforest customers see this vulnerability correlated to their own assets and prioritized by real exposure, not by score alone.
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