Cerberus PRO EN Engineering Tool: Out-of-bounds Read
CVE-2024-22040 is a high-severity out-of-bounds read vulnerability in Cerberus PRO EN Engineering Tool from Siemens, 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. Affected Cerberus PRO EN Engineering Tool versions: all versions. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 0.83% chance of exploitation within 30 days, higher than 58% of scored CVEs.
High severity with no evidence of exploitation so far.
What to do
- Update Cerberus PRO EN Fire Panel FC72x IP8 to IP8 SR4 or a later version.
- Update Cerberus PRO EN X200 Cloud Distribution IP8 to V4.3.5618 or a later version.
- Update Cerberus PRO EN X300 Cloud Distribution IP8 to V4.3.5617 or a later version.
- Until you can update, restrict network access to the affected service so it is not reachable from untrusted networks.
Affected products and versions
Version data comes from the organisation that assigned the CVE; 7 further products are omitted here. 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
- NoneNo data is disclosed.
- Integrity
- NoneNothing can be modified.
- Availability
- HighThe component can be taken down completely.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H. Scored by CNA (siemens.com).
Official description
A vulnerability has been identified in Cerberus PRO EN Engineering Tool (All versions), Cerberus PRO EN Fire Panel FC72x IP6 (All versions), Cerberus PRO EN Fire Panel FC72x IP7 (All versions), Cerberus PRO EN Fire Panel FC72x IP8 (All versions < IP8 SR4), Cerberus PRO EN X200 Cloud Distribution IP7 (All versions), Cerberus PRO EN X200 Cloud Distribution IP8 (All versions < V4.3.5618), Cerberus PRO EN X300 Cloud Distribution IP7 (All versions), Cerberus PRO EN X300 Cloud Distribution IP8 (All versions < V4.3.5617), Cerberus PRO UL Compact Panel FC922/924 (All versions < MP4), Cerberus PRO UL Engineering Tool (All versions < MP4), Cerberus PRO UL X300 Cloud Distribution (All versions < V4.3.0001), Desigo Fire Safety UL Compact Panel FC2025/2050 (All versions < MP4), Desigo Fire Safety UL Engineering Tool (All versions < MP4), Desigo Fire Safety UL X300 Cloud Distribution (All versions < V4.3.0001), Sinteso FS20 EN Engineering Tool (All versions), Sinteso FS20 EN Fire Panel FC20 MP6 (All versions), Sinteso FS20 EN Fire Panel FC20 MP7 (All versions), Sinteso FS20 EN Fire Panel FC20 MP8 (All versions < MP8 SR4), Sinteso FS20 EN X200 Cloud Distribution MP7 (All versions), Sinteso FS20 EN X200 Cloud Distribution MP8 (All versions < V4.3.5618), Sinteso FS20 EN X300 Cloud Distribution MP7 (All versions), Sinteso FS20 EN X300 Cloud Distribution MP8 (All versions < V4.3.5617), Sinteso Mobile (All versions). The network communication library in affected systems insufficiently validates HMAC values which might result in a buffer overread. This could allow an unauthenticated remote attacker to crash the network service.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Out-of-bounds Read
The product reads data past the end, or before the beginning, of the intended buffer.
How developers prevent this class of flaw
- Use a language that provides appropriate memory abstractions.
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: yes, technical impact: total).
- Record last changed materially (score, affected products, status or references).
References
Other references
Other vulnerabilities in Cerberus PRO EN Engineering Tool
- 7.5 High severity
- 9.8 Critical severity
Recent Out-of-bounds Read vulnerabilities
- 7.5 High severity
- 8.4 High severity
- 7.5 High severity
- 7.8 High severity
- 8.4 High severity
- 7.5 High severity
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