EVO 550: Path Traversal: '/../filedir'
CVE-2024-2442 is a high-severity path traversal: '/../filedir' vulnerability in EVO 550 from Franklin Fueling System, 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 2.26.3.8963 as the first without the flaw, so updating EVO 550 to that release or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 0.7% chance of exploitation within 30 days, higher than 54% of scored CVEs.
High severity with no evidence of exploitation so far.
What to do
- Update EVO 550 to 2.26.3.8963 or a later version.
- Update EVO 5000 to 2.26.3.8963 or a later version.
- Update evo_550 to 2.26.3.8963 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
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Franklin Fueling System | EVO 550 | before 2.26.3.8963 | 2.26.3.8963 |
| Franklin Fueling System | EVO 5000 | before 2.26.3.8963 | 2.26.3.8963 |
| Franklinfueling | evo_550 | before 2.26.3.8963 | 2.26.3.8963 |
| Franklinfueling | evo_5000 | before 2.26.3.8963 | 2.26.3.8963 |
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 CNA (hq.dhs.gov).
Official description
Franklin Fueling System EVO 550 and EVO 5000 are vulnerable to a Path Traversal vulnerability that could allow an attacker to access sensitive files on the system.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Path Traversal: '/../filedir'
The product uses external input to construct a pathname that should be within a restricted directory, but it does not properly neutralize /../ sequences that can resolve to a location that is outside of that directory.
How developers prevent this class of flaw
- Inputs should be decoded and canonicalized to the application's current internal representation before being validated (CWE-180). Make sure that the application does not decode the same input twice (CWE-174). Such errors could be used to bypass allowlist validation schemes by introducing dangerous inputs after they have been checked.
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: poc, automatable: yes, technical impact: partial).
- Record last changed materially (score, affected products, status or references).
References
Other references
Recent Path Traversal: '/../filedir' vulnerabilities
- 7.5 High severity
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