CyberSecBulletin
CVE-2022-45459NVD status: Modified

Acronis Agent: Incorrect Default Permissions

Published Updated By the CyberSecBulletin desk

CVE-2022-45459 is a high-severity incorrect default permissions vulnerability in Acronis Agent from Acronis, with a CVSS 3.1 base score of 7.5 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, without any action from a user. The record lists version 30025 as the first without the flaw, so updating Acronis Agent to that release or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 0.31% chance of exploitation within 30 days, which is low compared with other CVEs.

Next patch cycle

High severity with no evidence of exploitation so far.

What to do

  1. Update Acronis Agent to 30025 or a later version.
  2. Update Acronis Cyber Protect 15 to 30984 or a later version.
  3. Update Agent to c22.07 or a later version.
  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 Agentbefore 3002530025
AcronisAcronis Cyber Protect 15before 3098430984
AcronisAgentbefore c22.07c22.07
AcronisCyber Protectbefore 15; 1515

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
NoneNothing can be modified.
Availability
NoneAvailability is not affected.

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

Scoring systemScoreSeverityScored by
CVSS 3.17.5HighNVD
CVSS 3.03.8LowCNA (acronis.com)

Official description

Sensitive information disclosure due to insecure registry permissions. The following products are affected: Acronis Agent (Windows) before build 30025, Acronis Cyber Protect 15 (Windows) before build 30984.

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

The underlying weakness: Incorrect Default Permissions

During installation, installed file permissions are set to allow anyone to modify those files.

How developers prevent this class of flaw

  • The architecture needs to access and modification attributes for files to only those users who actually require those actions.
  • Compartmentalize the system to have safe areas where trust boundaries can be unambiguously drawn. Do not allow sensitive data to go outside of the trust boundary and always be careful when interfacing with a compartment outside of the safe area. Ensure that appropriate compartmentalization is built into the system design, and the compartmentalization allows for and reinforces privilege separation functionality. Architects and designers should rely on the principle of least privilege to decide the appropriate time to use privileges and the time to drop privileges.

More Incorrect Default Permissions vulnerabilities (CWE-276)

Timeline

  1. CVE record published.
  2. CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: partial).
  3. Record last changed materially (score, affected products, status or references).

References

Other vulnerabilities in Acronis Agent

All Acronis Agent vulnerabilities

Recent Incorrect Default Permissions vulnerabilities

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