{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2020-28361 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2020-28361 is a medium-severity vulnerability in n/a, published on 18 Nov 2020. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2020-28361 and fix it if it is affected.\n\nWhat it is: CVE-2020-28361 is a medium-severity vulnerability in n/a, published on 18 Nov 2020. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2020-28361 in the wild and no public exploit code.\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-2020-28361/ (Markdown: https://insights.sbomify.com/CVE-2020-28361/index.md)","id":"CVE-2020-28361","markdown":"https://insights.sbomify.com/CVE-2020-28361/index.md","name":"CVE-2020-28361","record":{"aliases":["DEBIAN-CVE-2020-28361","GHSA-qw54-9qj3-wxh7","UBUNTU-CVE-2020-28361"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["data_modify","other"],"network_reachable":"yes","non_default_config":false,"product_category":"SIP proxy server","requires_auth":"low_privilege","summary":"An attacker with valid credentials can bypass header removal protections in Kamailio to disrupt call accounting, potentially causing revenue loss.","user_interaction":"not_required","vuln_class":"security_feature_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"kamailio","vendor":"kamailio"}],"cvss":{"score":5.4,"severity":"medium","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N","version":"3.1"},"cwes":[{"id":"CWE-444","name":"Inconsistent Interpretation of HTTP Requests"}],"description":"Kamailio before 5.4.0, as used in Sip Express Router (SER) in Sippy Softswitch 4.5 through 5.2 and other products, allows a bypass of a header-removal protection mechanism via whitespace characters. This occurs in the remove_hf function in the Kamailio textops module. Particular use of remove_hf in Sippy Softswitch may allow skilled attacker having a valid credential in the system to disrupt internal call start/duration accounting mechanisms leading potentially to a loss of revenue.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"Security feature bypass in n/a","id":"CVE-2020-28361","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"security_feature_bypass","year":"2020"},"n_packages":0,"n_references":2,"next":{"headline":"Denial of service in n/a","id":"CVE-2020-28362"},"packages":[],"prev":{"headline":"Server-Side Request Forgery in private-ip","id":"CVE-2020-28360"},"products":["n/a"],"published":"2020-11-18","related":[{"cvss_score":9.8,"headline":"Memory corruption in n/a","id":"CVE-2020-27507","kev_date_added":null,"published":"2023-03-15"},{"cvss_score":9.8,"headline":"File upload in n/a","id":"CVE-2013-7426","kev_date_added":null,"published":"2017-08-29"},{"cvss_score":7.8,"headline":"Path traversal in n/a","id":"CVE-2015-1590","kev_date_added":null,"published":"2017-09-07"},{"cvss_score":7.8,"headline":"Privilege escalation in n/a","id":"CVE-2015-1591","kev_date_added":null,"published":"2017-06-27"},{"cvss_score":7.5,"headline":"Denial of service in n/a","id":"CVE-2026-52022","kev_date_added":null,"published":"2026-09-01"},{"cvss_score":7.5,"headline":"Denial of service in n/a","id":"CVE-2026-52023","kev_date_added":null,"published":"2026-09-01"},{"cvss_score":7.5,"headline":"Kamailio Core: TCP Data Processing Vulnerability","id":"CVE-2026-39863","kev_date_added":null,"published":"2026-04-08"}],"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)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-04","vendors":["n/a"]},"summary":"An attacker with valid credentials can bypass header removal protections in Kamailio to disrupt call accounting, potentially causing revenue loss.","url":"https://insights.sbomify.com/CVE-2020-28361/"}