CyberSecBulletin
CVE-2023-45249Exploited in the wildNVD status: Analyzed

Acronis Cyber Infrastructure (ACI) Insecure Default Password

Published Updated By the CyberSecBulletin desk

CVE-2023-45249 is a critical-severity use of default password vulnerability in Acronis Cyber Infrastructure from Acronis, with a CVSS 3.1 base score of 9.8 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, without any action from a user. The record lists versions 5.0.1-61, 5.1.1-71, 5.2.1-69 as the first without the flaw, so updating Acronis Cyber Infrastructure to one of those releases or later removes the exposure. CISA added it to the Known Exploited Vulnerabilities catalogue on July 29, 2024, which means attacks have been observed in the wild.

Patch now

Attackers are already exploiting this vulnerability, according to CISA.

What to do

  1. Update Acronis Cyber Infrastructure to 5.0.1-61 or 5.1.1-71 or 5.2.1-69 or 5.3.1-53, whichever matches your release line, or a later version.
  2. Update cyber_infrastructure to 5.0.1-61 or 5.1.1-71 or 5.2.1-69 or 5.3.1-53, whichever matches your release line, or a later version.
  3. CISA's required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
  4. Read the advisory on security-advisory.acronis.com for workarounds and exact fixed builds.
  5. Until you can update, restrict network access to the affected service so it is not reachable from untrusted networks.

Affected products and versions

VendorProductAffected versionsFixed in
AcronisAcronis Cyber Infrastructurebefore 5.0.1-61; before 5.1.1-71; before 5.2.1-69; before 5.3.1-53; before 5.4.4-1325.0.1-61, 5.1.1-71, 5.2.1-69, 5.3.1-53, 5.4.4-132
Acroniscyber_infrastructurebefore 5.0.1-61; 5.1.1 up to, but not including, 5.1.1-71; 5.2.1 up to, but not including, 5.2.1-69; 5.3.1 up to, but not including, 5.3.1-53; 5.4.4 up to, but not including, 5.4.4-1325.0.1-61, 5.1.1-71, 5.2.1-69, 5.3.1-53, 5.4.4-132

Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.

How the severity score breaks down

Attack vector
NetworkCan be exploited remotely over a network, including the internet.
Attack complexity
LowNo special conditions are needed; the attack works reliably.
Privileges required
NoneNo account or login is needed.
User interaction
NoneNo action by a victim is required.
Scope
UnchangedImpact stays within the vulnerable component.
Confidentiality
HighAll data handled by the component can be read.
Integrity
HighData or code can be modified at will.
Availability
HighThe component can be taken down completely.

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. Scored by NVD.

Scoring systemScoreSeverityScored by
CVSS 3.19.8CriticalNVD
CVSS 3.09.8CriticalCNA (acronis.com)

Official description

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.

Source: the CVE record as published by its numbering authority, via NVD and CVE.org.

The underlying weakness: Use of Default Password

The product uses default passwords for potentially critical functionality.

How developers prevent this class of flaw

  • Prohibit use of default, hard-coded, or other values that do not vary for each installation of the product - especially for separate organizations.
  • Ensure that product documentation clearly emphasizes the presence of default passwords and provides steps for the administrator to change them.
  • Force the administrator to change the credential upon installation.

More Use of Default Password vulnerabilities (CWE-1393)

Timeline

  1. CVE record published.
  2. Added to CISA's Known Exploited Vulnerabilities catalogue.
  3. Deadline for US federal agencies to remediate, set by CISA.
  4. CISA published its SSVC assessment (exploitation: active, automatable: yes, technical impact: total).
  5. Record last changed materially (score, affected products, status or references).

References

Third-party and government advisories

Other vulnerabilities in Acronis Cyber Infrastructure

All Acronis Cyber Infrastructure vulnerabilities

Recent Use of Default Password vulnerabilities

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