totemomail: Path Traversal: '/dir/../filename'
CVE-2024-28064 is a critical-severity path traversal: '/dir/../filename' vulnerability in totemomail from Kiteworks, 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. The record lists versions 8.0, 8.3.0 as the first without the flaw, so updating totemomail to one of those releases or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 0.86% chance of exploitation within 30 days, higher than 59% of scored CVEs.
Critical severity: a successful attack would have severe impact.
What to do
- Update totemomail to 8.0 or 8.3.0, whichever matches your release line, 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 |
|---|---|---|---|
| Kiteworks | totemomail | 7.0 up to, but not including, 8.0; 8.0 up to, but not including, 8.3.0 | 8.0, 8.3.0 |
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 CISA (ADP).
Official description
Kiteworks Totemomail 7.x and 8.x before 8.3.0 allows /responsiveUI/EnvelopeOpenServlet messageId directory traversal for unauthenticated file read and delete operations (with displayLoginChunkedImages) and write operations (with storeLoginChunkedImages).
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Path Traversal: '/dir/../filename'
The product uses external input to construct a pathname that should be within a restricted directory, but it does not properly neutralize /dir/../filename 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.
More Path Traversal: '/dir/../filename' vulnerabilities (CWE-26)
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: yes, technical impact: partial).
- Record last changed materially (score, affected products, status or references).
References
Other references
Recent Path Traversal: '/dir/../filename' vulnerabilities
- 8.8 High severity
- 7.5 High severity
- 7.8 High severity
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