CVE-2021-34805

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 26.8% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2022-01-31 · updated 2026-06-17
Weakness: CWE-22

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

Land-Software Faust Iserver: from 9.0.017.017.1-3 before 9.0.019.019.7 — fixed in 9.0.019.019.7

How to fix

Upgrade to a fixed version: Land-Software Faust Iserver 9.0.019.019.7. Check the vendor advisory for mitigations.

References

http://packetstormsecurity.com/files/165701/FAUST-iServer-9.0.018.018.4-Local-File-Inclusion.html
http://www.land-software.de/lfs.fau?prj=iweb&dn=faust+iserver
https://sec-consult.com/vulnerability-lab/
http://packetstormsecurity.com/files/165701/FAUST-iServer-9.0.018.018.4-Local-File-Inclusion.html
http://www.land-software.de/lfs.fau?prj=iweb&dn=faust+iserver
https://sec-consult.com/vulnerability-lab/

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