{"answers":{"affected":"2 open source packages ship an affected version, including github.com/ginuerzh/gost. It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-32691 exists.","fix":"No fix has been published for CVE-2023-32691 yet. Limit exposure of the affected software until one is available.","what":"CVE-2023-32691 is a medium-severity vulnerability in ginuerzh gost, published on 30 May 2023. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2023-32691 and fix it if it is affected.\n\nWhat it is: CVE-2023-32691 is a medium-severity vulnerability in ginuerzh gost, published on 30 May 2023. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-32691 exists.\n\nAffected packages and fixed versions:\n- github.com/ginuerzh/gost (Go): affected all versions up to 2.11.5; no fix listed\n- github.com/ginuerzh/gost (Go): affected all versions up to 2.11.5; no fix listed\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-2023-32691/ (Markdown: https://insights.sbomify.com/CVE-2023-32691/index.md)","id":"CVE-2023-32691","markdown":"https://insights.sbomify.com/CVE-2023-32691/index.md","name":"CVE-2023-32691","record":{"aliases":["GHSA-qjrq-hm79-49ww"],"analysis":{"component_type":"server_software","fix_type":"patch","impacts":["data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"Go tunneling tool","requires_auth":"low_privilege","summary":"Attackers can guess secrets via timing attacks due to non-constant-time comparison of HTTP headers in gost.","user_interaction":"not_required","vuln_class":"information_disclosure"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"go_simple_tunnel","vendor":"go_simple_tunnel_project"}],"cvss":{"score":5.9,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:N","version":"3.1"},"cwes":[{"id":"CWE-203","name":"Observable Discrepancy"}],"description":"gost (GO Simple Tunnel) is a simple tunnel written in golang. Sensitive secrets such as passwords, token and API keys should be compared only using a constant-time comparison function. Untrusted input, sourced from a HTTP header, is compared directly with a secret. Since this comparison is not secure, an attacker can mount a side-channel timing attack to guess the password. As a workaround, this can be easily fixed using a constant time comparing function such as `crypto/subtle`'s `ConstantTimeCompare`.","ecosystems":["Go"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":false,"headline":"ginuerzh/gost vulnerable to Timing Attack","id":"CVE-2023-32691","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Go","product":null,"products":[],"type":"information_disclosure","year":"2023"},"n_packages":2,"n_references":2,"next":{"headline":"Remote Code Execution Vulnerability in Validation Placeholders","id":"CVE-2023-32692"},"packages":[{"ecosystem":"Go","fixed":[],"introduced":["0"],"last_affected":["2.11.5"],"package":"github.com/ginuerzh/gost","purl":null,"source":"GHSA-qjrq-hm79-49ww"},{"ecosystem":"Go","fixed":[],"introduced":["0"],"last_affected":["2.11.5"],"package":"github.com/ginuerzh/gost","purl":"pkg:golang/github.com/ginuerzh/gost","source":"GHSA-qjrq-hm79-49ww"}],"prev":{"headline":"Responder can Invoke Undefined Behavior in libspdm Requester","id":"CVE-2023-32690"},"products":["gost"],"published":"2023-05-30","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"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":"no","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2025-01-10","vendors":["ginuerzh"]},"summary":"Attackers can guess secrets via timing attacks due to non-constant-time comparison of HTTP headers in gost.","url":"https://insights.sbomify.com/CVE-2023-32691/"}