{"answers":{"affected":"It affects 2 products.","exploited":"There is no known exploitation of CVE-2017-16921 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2017-16921 is a high-severity command injection vulnerability in Debian Debian Linux, published on 8 Dec 2017. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2017-16921 and fix it if it is affected.\n\nWhat it is: CVE-2017-16921 is a high-severity command injection vulnerability in Debian Debian Linux, published on 8 Dec 2017. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2017-16921 in the wild and no public exploit code.\n\nAffected product: Debian Debian Linux. 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-2017-16921/ (Markdown: https://insights.sbomify.com/CVE-2017-16921/index.md)","id":"CVE-2017-16921","markdown":"https://insights.sbomify.com/CVE-2017-16921/index.md","name":"CVE-2017-16921","record":{"aliases":["DEBIAN-CVE-2017-16921","GHSA-x9qc-g4w7-x2hf","UBUNTU-CVE-2017-16921"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":true,"product_category":"OTRS ticket system","requires_auth":"low_privilege","summary":"Authenticated agents can execute arbitrary shell commands via manipulated PGP form parameters in OTRS, requiring PGP features to be enabled.","user_interaction":"not_required","vuln_class":"command_injection"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"debian_linux","vendor":"debian"},{"product":"otrs","vendor":"otrs"}],"cvss":{"score":8.8,"severity":"high","source":"nvd","vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.0"},"cwes":[{"id":"CWE-78","name":"Improper Neutralization of Special Elements used in an OS Command"}],"description":"In OTRS 6.0.x up to and including 6.0.1, OTRS 5.0.x up to and including 5.0.24, and OTRS 4.0.x up to and including 4.0.26, an attacker who is logged into OTRS as an agent can manipulate form parameters (related to PGP) and execute arbitrary shell commands with the permissions of the OTRS or web server user.","ecosystems":[],"exploits":{"exploitdb":1,"first_seen":"2018-01-21","github_poc":1,"max_poc_stars":0,"metasploit":0,"nuclei":0,"refs":[{"date":"2018-01-21","kind":"exploitdb","ref":"43853","stars":null,"title":"OTRS 5.0.x/6.0.x - Remote Command Execution (1)"},{"date":"2024-08-11T20:33:58Z","kind":"github_poc","ref":"https://github.com/Smarttfoxx/OTRS-4.0.1-6.0.1-Remote-Command-Execution","stars":0,"title":"CVE-2017-16921: In OTRS 6.0.x up to and including 6.0.1, OTRS 5.0.x up to and including 5.0.24, and OTRS 4.0.x up to and including 4.0.26, an attacker who is logged into OTRS as an agent can manipulate form parameters (related to PGP) and execute arbitrary shell commands with the permissions of the OTRS or web server user."}],"tier":"poc_unverified"},"has_fix":true,"headline":"Command injection in n/a","id":"CVE-2017-16921","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"debian:debian_linux","products":["debian:debian_linux","otrs:otrs"],"type":"command_injection","year":"2017"},"n_packages":0,"n_references":5,"next":{"headline":"Path traversal in n/a","id":"CVE-2017-16922"},"packages":[],"prev":{"headline":"File upload in n/a","id":"CVE-2017-16920"},"products":["n/a"],"published":"2017-12-08","related":[{"cvss_score":10,"headline":"ProFTPD Improper Access Control","id":"CVE-2015-3306","kev_date_added":"2026-10-08","published":"2015-05-18"},{"cvss_score":9.9,"headline":"RoundCube Webmail Deserialization of Untrusted Data","id":"CVE-2025-49113","kev_date_added":"2026-02-20","published":"2025-06-02"},{"cvss_score":9.8,"headline":"GNU InetUtils Argument Injection","id":"CVE-2026-24061","kev_date_added":"2026-01-26","published":"2026-01-21"},{"cvss_score":9.8,"headline":"Linux Kernel Improper Check for Unusual or Exceptional Conditions","id":"CVE-2025-39682","kev_date_added":"2026-09-18","published":"2025-09-05"},{"cvss_score":9.8,"headline":"Mozilla Firefox Use-After-Free","id":"CVE-2024-9680","kev_date_added":"2024-10-15","published":"2024-10-09"},{"cvss_score":9.8,"headline":"RARLAB UnRAR Directory Traversal","id":"CVE-2022-30333","kev_date_added":"2022-08-09","published":"2022-05-09"},{"cvss_score":9.8,"headline":"Roundcube Webmail SQL Injection","id":"CVE-2021-44026","kev_date_added":"2023-06-22","published":"2021-11-19"}],"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":"GPL-2.0-or-later","name":"Exploit-DB"},{"class":"open","licence":"CC0","name":"PoC-in-GitHub"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-05","vendors":["n/a"]},"summary":"Authenticated agents can execute arbitrary shell commands via manipulated PGP form parameters in OTRS, requiring PGP features to be enabled.","url":"https://insights.sbomify.com/CVE-2017-16921/"}