CyberSecBulletin
CVE-2024-51554NVD status: Analyzed

ASPECT-Enterprise: Off-by-one Error

Published Updated By the CyberSecBulletin desk

CVE-2024-51554 is a critical-severity off-by-one error vulnerability in ASPECT-Enterprise from ABB, 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 ASPECT-Enterprise versions: 3.08.02 and earlier. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 0.39% chance of exploitation within 30 days, which is low compared with other CVEs.

Patch this week

Critical severity: a successful attack would have severe impact.

What to do

  1. Update Aspect-ent-2 Firmware to 3.08.03 or a later version.
  2. Update Aspect-ent-256 Firmware to 3.08.03 or a later version.
  3. Update Aspect-ent-96 Firmware to 3.08.03 or a later version.
  4. Read the advisory on search.abb.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
ABBASPECT-Enterprise3.08.02 and earlierNot stated
ABBNEXUS Series3.08.02 and earlierNot stated
ABBMATRIX Series3.08.02 and earlierNot stated
ABBAspect-ent-2 Firmwarebefore 3.08.033.08.03
ABBAspect-ent-256 Firmwarebefore 3.08.033.08.03
ABBAspect-ent-96 Firmwarebefore 3.08.033.08.03
ABBNexus-2128 Firmwarebefore 3.08.033.08.03
ABBNexus-2128-a Firmwarebefore 3.08.033.08.03
ABBNexus-2128-f Firmwarebefore 3.08.033.08.03
ABBNexus-2128-g Firmwarebefore 3.08.033.08.03
ABBNexus-264 Firmwarebefore 3.08.033.08.03
ABBNexus-264-a Firmwarebefore 3.08.033.08.03
ABBNexus-264-g Firmwarebefore 3.08.033.08.03
ABBNexus-3-2128 Firmwarebefore 3.08.033.08.03
ABBAspect-ent-12 Firmwarebefore 3.08.033.08.03
ABBNexus-264-f Firmwarebefore 3.08.033.08.03
ABBNexus-3-264 Firmwarebefore 3.08.033.08.03
ABBMatrix-11 Firmwarebefore 3.08.033.08.03
ABBMatrix-216 Firmwarebefore 3.08.033.08.03
ABBMatrix-232 Firmwarebefore 3.08.033.08.03
ABBMatrix-264 Firmwarebefore 3.08.033.08.03
ABBMatrix-296 Firmwarebefore 3.08.033.08.03

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 4.08.8HighCNA (ch.abb.com)
CVSS 3.19.1CriticalCNA (ch.abb.com)
CVSS 3.19.8CriticalNVD

Official description

Default Credentail vulnerabilities in ASPECT on Linux allows access to the product using publicly available default credentials. Affected products: ABB ASPECT - Enterprise v3.08.02; NEXUS Series v3.08.02; MATRIX Series v3.08.02

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

The underlying weakness: Off-by-one Error

A product calculates or uses an incorrect maximum or minimum value that is 1 more, or 1 less, than the correct value.

How developers prevent this class of flaw

  • When copying character arrays or using character manipulation methods, the correct size parameter must be used to account for the null terminator that needs to be added at the end of the array. Some examples of functions susceptible to this weakness in C include strcpy(), strncpy(), strcat(), strncat(), printf(), sprintf(), scanf() and sscanf().

More Off-by-one Error vulnerabilities (CWE-193)

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 ASPECT-Enterprise

All ASPECT-Enterprise vulnerabilities

Recent Off-by-one Error vulnerabilities

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