CVE-2021-34805Faust Iserver Path Traversal
For each URL request, it accesses the corresponding .fau file on the operating system without preventing %2e%2e%5c directory traversal.
Published Jan 31, 2022 · Updated Nov 21, 2024
Key Facts
Patch in the next maintenance window- CVE-2021-34805 is a high-severity vulnerability (CVSS 7.5 v3.1) affecting Faust Iserver (Land-Software).
- It is not listed in any known-exploited vulnerabilities catalog. No public exploit code is known.
- EPSS estimates a 27% probability of exploitation in the next 30 days.
- Fixed versions are available, including Faust Iserver 9.0.019.019.7.
- Brandefense priority: patch in the next maintenance window, because of its high severity, although no exploitation is known.
Scores
CVSS v3.1
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS (30-day exploit likelihood)
27%
Higher than 98.0% of all scored CVEs
Exploit maturity
Proof of concept
ATLAS score
35/100
Publication score, see How it works
Exploitation Verdict
KEV listed
Not listed
Federal due date
None
No federal due date
Ransomware use
Not reported
Attributed actors
None named
Exploit & Defence Guidance
Exploit maturity
Proof of concept
Public exploit code
1
Proof-of-concept links
In-the-wild evidence
1
Reports of active use
Advisories And Exploit References
Description
An issue was discovered in FAUST iServer before 9.0.019.019.7. For each URL request, it accesses the corresponding .fau file on the operating system without preventing %2e%2e%5c directory traversal.
Affected Products
1 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| Faust IserverLand-Software | See advisory | 9.0.019.019.7 |
Patched Releases
Faust Iserver
9.0.019.019.7
Timeline
Publicly disclosed
Jan 31, 2022
Last updated
Nov 21, 2024
Weakness Type
- CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
FAQ
Common Questions.
An issue was discovered in FAUST iServer before 9.0.019.019.7.
Affected: Faust Iserver (Land-Software). The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
No public exploit code is known.
Fixed versions are available, including Faust Iserver 9.0.019.019.7.
Brandefense priority: patch in the next maintenance window, because of its high severity, although no exploitation is known.
Is CVE-2021-34805 On Your Attack Surface?
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