SAP Asset Accounting: Path Traversal: '.../...//'
CVE-2024-27901 is a high-severity path traversal: '.../...//' vulnerability in SAP Asset Accounting from SAP, with a CVSS 3.1 base score of 7.2 out of 10. It can be exploited remotely over the network by an attacker with administrator privileges, without any action from a user. Affected SAP Asset Accounting versions: SAP_APPL 600; SAP_APPL 602; SAP_APPL 603, and others listed below. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 0.73% chance of exploitation within 30 days, higher than 55% of scored CVEs.
High severity with no evidence of exploitation so far.
What to do
- Check which version of SAP Asset Accounting you run against the affected versions below, and install the vendor's latest release.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| SAP | SAP Asset Accounting | SAP_APPL 600; SAP_APPL 602; SAP_APPL 603; SAP_APPL 604; SAP_APPL 605; SAP_APPL 606; SAP_FIN617; SAP_FIN 618; and 1 more ranges | Not stated |
| SAP | asset_accounting | sap_appl600; sap_appl602; sap_appl603; sap_appl604; sap_appl605; sap_appl606; sap_fin617; sap_fin618; and 1 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
- HighAdministrator-level access is required first.
- 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:H/UI:N/S:U/C:H/I:H/A:H. Scored by CNA (sap.com).
Official description
SAP Asset Accounting could allow a high privileged attacker to exploit insufficient validation of path information provided by the users and pass it through to the file API's. Thus, causing a considerable impact on confidentiality, integrity and availability of the application.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Path Traversal: '.../...//'
The product uses external input to construct a pathname that should be within a restricted directory, but it does not properly neutralize '.../...//' (doubled triple dot slash) 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: none, automatable: no, technical impact: total).
- Record last changed materially (score, affected products, status or references).
References
Other references
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