CyberSecBulletin
CVE-2022-46404NVD status: Modified

Unify Openscape 4000 Assistant: Improper Neutralization of Special Elements used in a Command

Published Updated By the CyberSecBulletin desk

CVE-2022-46404 is a critical-severity improper neutralization of special elements used in a command vulnerability in Unify Openscape 4000 Assistant from Atos, 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. Affected Unify Openscape 4000 Assistant versions: 8; 10. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 1.85% chance of exploitation within 30 days, higher than 79% of scored CVEs.

Patch this week

Critical severity: a successful attack would have severe impact.

What to do

  1. Check which version of Unify Openscape 4000 Assistant you run against the affected versions below, and install the vendor's latest release.
  2. Read the advisory on networks.unify.com for workarounds and exact fixed builds.
  3. 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
AtosUnify Openscape 4000 Assistant8; 10Not stated
AtosUnify Openscape 4000 Manager8; 10Not stated

Version data comes from NVD's product matching. 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 3.19.8CriticalCNA (mitre.org)
CVSS 3.19.8CriticalNVD

Official description

A command injection vulnerability has been identified in Atos Unify OpenScape 4000 Assistant and Unify OpenScape 4000 Manager (8 before R2.22.18, 10 before 0.28.13, and 10 R1 before R1.34.4) that may allow an unauthenticated attacker to upload arbitrary files and achieve administrative access to the system.

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

The underlying weakness: Improper Neutralization of Special Elements used in a Command

The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component.

How developers prevent this class of flaw

  • If at all possible, use library calls rather than external processes to recreate the desired functionality.
  • If possible, ensure that all external commands called from the program are statically created.
  • Run time: Run time policy enforcement may be used in an allowlist fashion to prevent use of any non-sanctioned commands.

More Improper Neutralization of Special Elements used in a Command vulnerabilities (CWE-77)

Timeline

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

References

Other vulnerabilities in Unify Openscape 4000 Assistant

All Unify Openscape 4000 Assistant vulnerabilities

Recent Improper Neutralization of Special Elements used in a Command vulnerabilities

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