{"answers":{"affected":"2 open source packages ship an affected version, including github.com/bishopfox/sliver. It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-34758 exists.","fix":"Upgrade github.com/bishopfox/sliver to 1.5.40 or later.","what":"CVE-2023-34758 is a high-severity vulnerability in n/a, published on 28 Aug 2023. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2023-34758 and fix it if it is affected.\n\nWhat it is: CVE-2023-34758 is a high-severity vulnerability in n/a, published on 28 Aug 2023. 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-2023-34758 exists.\n\nAffected packages and fixed versions:\n- github.com/bishopfox/sliver (Go): affected from 1.5.0; fixed in 1.5.40\n- github.com/bishopfox/sliver (Go): affected from 1.5.0; fixed in 1.5.40\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-2023-34758/ (Markdown: https://insights.sbomify.com/CVE-2023-34758/index.md)","id":"CVE-2023-34758","markdown":"https://insights.sbomify.com/CVE-2023-34758/index.md","name":"CVE-2023-34758","record":{"aliases":["GHSA-8jxm-xp43-qh3q"],"analysis":{"component_type":"developer_tool","fix_type":"upgrade","impacts":["security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"C2 framework","requires_auth":"none","summary":"Attackers can perform man-in-the-middle attacks against Sliver C2 framework due to improper cryptographic implementation.","user_interaction":"not_required","vuln_class":"weak_cryptography"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"sliver","vendor":"bishopfox"}],"cvss":{"score":8.1,"severity":"high","source":"nvd","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-327","name":"Use of a Broken or Risky Cryptographic Algorithm"}],"description":"Sliver from v1.5.x to v1.5.39 has an improper cryptographic implementation, which allows attackers to execute a man-in-the-middle attack via intercepted and crafted responses.","ecosystems":["Go"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":true,"headline":"Silver vulnerable to MitM attack against implants due to a cryptography vulnerability","id":"CVE-2023-34758","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Go","product":null,"products":[],"type":"weak_cryptography","year":"2023"},"n_packages":2,"n_references":4,"next":{"headline":"Security feature bypass in n/a","id":"CVE-2023-34761"},"packages":[{"ecosystem":"Go","fixed":["1.5.40"],"introduced":["1.5.0"],"last_affected":[],"package":"github.com/bishopfox/sliver","purl":null,"source":"GHSA-8jxm-xp43-qh3q"},{"ecosystem":"Go","fixed":["1.5.40"],"introduced":["1.5.0"],"last_affected":[],"package":"github.com/bishopfox/sliver","purl":"pkg:golang/github.com/bishopfox/sliver","source":"GHSA-8jxm-xp43-qh3q"}],"prev":{"headline":"SQL injection in n/a","id":"CVE-2023-34756"},"products":["n/a"],"published":"2023-08-28","related":[{"cvss_score":7.5,"headline":"Sliver has a DNS C2 OTP Bypass Allows Unauthenticated Session Flooding and Denial of Service","id":"CVE-2026-25791","kev_date_added":null,"published":"2026-02-09"},{"cvss_score":6.9,"headline":"Server-Side Request Forgery (SSRF) in sliver teamserver","id":"CVE-2025-27090","kev_date_added":null,"published":"2025-02-19"},{"cvss_score":6.5,"headline":"Website Path Traversal / Arbitrary File Read (Authenticated) in Sliver","id":"CVE-2026-25760","kev_date_added":null,"published":"2026-02-06"},{"cvss_score":5.9,"headline":"Sliver One-Click Remote Access: Insecure CORS \u0026 Unauthenticated MCP Interface","id":"CVE-2026-34227","kev_date_added":null,"published":"2026-03-31"},{"cvss_score":5.7,"headline":"Sliver Vulnerable to Authenticated OOM via Memory Exhaustion in mTLS/WireGuard Transports","id":"CVE-2026-32941","kev_date_added":null,"published":"2026-03-20"},{"cvss_score":2.1,"headline":"Sliver: Authenticated Nil-Pointer Dereference in Handlers","id":"CVE-2026-29781","kev_date_added":null,"published":"2026-03-07"}],"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":"total"},"state":"PUBLISHED","updated":"2024-10-02","vendors":["n/a"]},"summary":"Attackers can perform man-in-the-middle attacks against Sliver C2 framework due to improper cryptographic implementation.","url":"https://insights.sbomify.com/CVE-2023-34758/"}