{"answers":{"affected":"It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2020-35729 exists.","fix":"No fix has been published for CVE-2020-35729 yet. Limit exposure of the affected software until one is available.","what":"CVE-2020-35729 is a critical command injection vulnerability in n/a, published on 27 Dec 2020. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2020-35729 and fix it if it is affected.\n\nWhat it is: CVE-2020-35729 is a critical command injection vulnerability in n/a, published on 27 Dec 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2020-35729 exists.\n\nAffected product: n/a. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2020-35729/ (Markdown: https://insights.sbomify.com/CVE-2020-35729/index.md)","id":"CVE-2020-35729","markdown":"https://insights.sbomify.com/CVE-2020-35729/index.md","name":"CVE-2020-35729","record":{"aliases":["GHSA-w4v7-6457-x826"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"KLog Server","requires_auth":"none","summary":"An attacker can execute arbitrary OS commands via shell metacharacters in the user parameter of the authentication script.","user_interaction":"not_required","vuln_class":"command_injection"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"klog_server","vendor":"klogserver"}],"cvss":{"score":9.8,"severity":"critical","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-78","name":"Improper Neutralization of Special Elements used in an OS Command"}],"description":"KLog Server 2.4.1 allows OS command injection via shell metacharacters in the actions/authenticate.php user parameter.","ecosystems":[],"exploits":{"exploitdb":2,"first_seen":"2020-12-27","github_poc":1,"max_poc_stars":5,"metasploit":1,"nuclei":1,"refs":[{"date":"2021-04-09T07:59:43Z","kind":"github_poc","ref":"https://github.com/Al1ex/CVE-2020-35729","stars":5,"title":"CVE-2020-35729"},{"date":"2020-12-27","kind":"metasploit","ref":"exploit/linux/http/klog_server_authenticate_user_unauth_command_injection","stars":null,"title":"Klog Server authenticate.php user Unauthenticated Command Injection"},{"date":"2021-01-05","kind":"exploitdb","ref":"49366","stars":null,"title":"Klog Server 2.4.1 - Command Injection (Unauthenticated)"},{"date":"2021-01-25","kind":"exploitdb","ref":"49474","stars":null,"title":"Klog Server 2.4.1 - Unauthenticated Command Injection (Metasploit)"},{"date":null,"kind":"nuclei","ref":"http/cves/2020/CVE-2020-35729.yaml","stars":null,"title":"Klog Server \u003c=2.41 - Unauthenticated Command Injection"}],"tier":"weaponised"},"has_fix":null,"headline":"Command injection in n/a","id":"CVE-2020-35729","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"command_injection","year":"2020"},"n_packages":0,"n_references":5,"next":{"headline":"Roundcube Webmail Cross-Site Scripting (XSS)","id":"CVE-2020-35730"},"packages":[],"prev":{"headline":"Serialization gadget exploit in jackson-databind","id":"CVE-2020-35728"},"products":["n/a"],"published":"2020-12-27","related":[{"cvss_score":8.8,"headline":"Command injection in n/a","id":"CVE-2021-3317","kev_date_added":null,"published":"2021-01-26"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"},{"class":"attribution","licence":"BSD-3-Clause","name":"Metasploit"},{"class":"attribution","licence":"GPL-2.0-or-later","name":"Exploit-DB"},{"class":"attribution","licence":"MIT","name":"Nuclei templates"},{"class":"open","licence":"CC0","name":"PoC-in-GitHub"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-04","vendors":["n/a"]},"summary":"An attacker can execute arbitrary OS commands via shell metacharacters in the user parameter of the authentication script.","url":"https://insights.sbomify.com/CVE-2020-35729/"}