FUJITSU Business Application ID Link Manager II: Absolute Path Traversal
CVE-2024-33620 is a high-severity absolute path traversal vulnerability in FUJITSU Business Application ID Link Manager II from Fsas Technologies, with a CVSS 3.1 base score of 8.6 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, without any action from a user. Affected FUJITSU Business Application ID Link Manager II versions: V1.8 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 0.68% chance of exploitation within 30 days, higher than 53% of scored CVEs.
High severity with no evidence of exploitation so far.
What to do
- Check which version of FUJITSU Business Application ID Link Manager II you run against the affected versions below, and install the vendor's latest release.
- 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 |
|---|---|---|---|
| Fsas Technologies | FUJITSU Business Application ID Link Manager II | V1.8 and earlier | Not stated |
| Fsas Technologies | FUJITSU Software ID Link Manager | V2.0 | Not stated |
| Fsas Technologies | FUJITSU Software TIME CREATOR ID Link Manager | V2.3.0; V2.3.1; V2.4; V2.5; V2.6; and V2.7; V3.0; V3.0.2; and 2 more ranges | Not stated |
| Fujitsu | business_application_id_link_manager_ii | 1.8 and earlier | Not stated |
| Fujitsu | id_link_manager | 2.0 | Not stated |
| Fujitsu | time_creator_id_link_manager | 2.3.0; 2.3.1; 2.4; 2.5; 2.6; 2.7; 3.0; 3.0.2; and 2 more ranges | Not stated |
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
- ChangedThe attack can reach beyond the vulnerable component into other systems.
- 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:C/C:H/I:N/A:N. Scored by CISA (ADP).
Official description
Absolute path traversal vulnerability exists in ID Link Manager and FUJITSU Software TIME CREATOR. If this vulnerability is exploited, the file contents including sensitive information on the server may be retrieved by an unauthenticated remote attacker.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Absolute Path Traversal
The product uses external input to construct a pathname that should be within a restricted directory, but it does not properly neutralize absolute path sequences such as /abs/path 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.
- Use an application firewall that can detect attacks against this weakness. It can be beneficial in cases in which the code cannot be fixed (because it is controlled by a third party), as an emergency prevention measure while more comprehensive software assurance measures are applied, or to provide defense in depth.
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
Recent Absolute Path Traversal vulnerabilities
- 8.8 High severity
- 7.5 High severity
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