CVE-2021-34805
HIGHCVSS 7.5/10EPSS 26.82%
Last modified
CVE-2021-34805 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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.. EPSS estimates a 26.82% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Land-Software | Faust Iserver | >= 9.0.017.017.1-3, < 9.0.019.019.7 |
References
- http://packetstormsecurity.com/files/165701/FAUST-iServer-9.0.018.018.4-Local-File-Inclusion.htmlExploit, Third Party Advisory, VDB Entry
- http://www.land-software.de/lfs.fau?prj=iweb&dn=faust+iserverProduct, Vendor Advisory
- https://sec-consult.com/vulnerability-lab/Exploit, Third Party Advisory
- http://packetstormsecurity.com/files/165701/FAUST-iServer-9.0.018.018.4-Local-File-Inclusion.htmlExploit, Third Party Advisory, VDB Entry
- http://www.land-software.de/lfs.fau?prj=iweb&dn=faust+iserverProduct, Vendor Advisory
- https://sec-consult.com/vulnerability-lab/Exploit, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-34805?
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.
How severe is CVE-2021-34805?
CVE-2021-34805 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 26.82% probability of exploitation in the next 30 days.
How do I fix CVE-2021-34805?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2021-34805?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST