{"id":"CVE-2017-6168","aliases":["EUVD-2017-15233","GHSA-j523-gf5p-f8pm"],"status":"published","title":"On BIG-IP versions 11.6.0-11.6.2 (fixed in 11.6.2 HF1), 12.0.0-12.1.2 HF1 (fixed in 12.1.2 HF2),...","description":"On BIG-IP versions 11.6.0-11.6.2 (fixed in 11.6.2 HF1), 12.0.0-12.1.2 HF1 (fixed in 12.1.2 HF2), or 13.0.0-13.0.0 HF2 (fixed in 13.0.0 HF3) a virtual server configured with a Client SSL profile may be vulnerable to an Adaptive Chosen Ciphertext attack (AKA Bleichenbacher attack) against RSA, which when exploited, may result in plaintext recovery of encrypted messages and/or a Man-in-the-middle (MiTM) attack, despite the attacker not having gained access to the server's private key itself, aka a ROBOT attack.","severity":{"version":"3.0","score":7.4,"vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.19637,"percentile":0.97407,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-203"],"published":"2017-11-17T19:00:00Z","modified":"2026-06-17T01:21:53Z","exploits":[{"source":"metasploit","id":"auxiliary/scanner/ssl/bleichenbacher_oracle","title":"Scanner for Bleichenbacher Oracle in RSA PKCS #1 v1.5","type":"auxiliary","date":"2009-06-17","verified":true,"url":"https://www.rapid7.com/db/modules/auxiliary/scanner/ssl/bleichenbacher_oracle"}],"products":[{"vendor":"f5","product":"big-ip_afm"},{"vendor":"f5","product":"big-ip_analytics"},{"vendor":"f5","product":"big-ip_apm"},{"vendor":"f5","product":"big-ip_application_acceleration_manager"},{"vendor":"f5","product":"big-ip_asm"},{"vendor":"f5","product":"big-ip_link_controller"},{"vendor":"f5","product":"big-ip_ltm"},{"vendor":"f5","product":"big-ip_pem"},{"vendor":"f5","product":"websafe"}],"references":[{"url":"https://robotattack.org/","tags":["x_refsource_MISC","x_transferred","Technical Description","Third Party Advisory"]},{"url":"https://support.f5.com/csp/article/K21905460","tags":["x_refsource_CONFIRM","x_transferred","Issue Tracking","Mitigation","Vendor Advisory"]},{"url":"http://www.securityfocus.com/bid/101901","tags":["vdb-entry","x_refsource_BID","x_transferred","Third Party Advisory","VDB Entry"]},{"url":"https://www.kb.cert.org/vuls/id/144389","tags":["third-party-advisory","x_refsource_CERT-VN","x_transferred","Third Party Advisory","US Government Resource"]},{"url":"http://www.securitytracker.com/id/1039839","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred","Third Party Advisory","VDB Entry"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2017-6168"},{"url":"https://robotattack.org"},{"url":"https://github.com/advisories/GHSA-j523-gf5p-f8pm"}],"sources":{"cve":[{"id":"CVE-2017-6168","description":"On BIG-IP versions 11.6.0-11.6.2 (fixed in 11.6.2 HF1), 12.0.0-12.1.2 HF1 (fixed in 12.1.2 HF2), or 13.0.0-13.0.0 HF2 (fixed in 13.0.0 HF3) a virtual server configured with a Client SSL profile may be vulnerable to an Adaptive Chosen Ciphertext attack (AKA Bleichenbacher attack) against RSA, which when exploited, may result in plaintext recovery of encrypted messages and/or a Man-in-the-middle (MiTM) attack, despite the attacker not having gained access to the server's private key itself, aka a ROBOT attack.","status":"published","published":"2017-11-17T19:00:00Z","modified":"2024-08-05T15:18:49.948Z","updated_at":"2026-11-02T14:33:16.916541Z"}],"euvd":[{"id":"EUVD-2017-15233","description":"On BIG-IP versions 11.6.0-11.6.2 (fixed in 11.6.2 HF1), 12.0.0-12.1.2 HF1 (fixed in 12.1.2 HF2), or 13.0.0-13.0.0 HF2 (fixed in 13.0.0 HF3) a virtual server configured with a Client SSL profile may be vulnerable to an Adaptive Chosen Ciphertext attack (AKA Bleichenbacher attack) against RSA, which when exploited, may result in plaintext recovery of encrypted messages and/or a Man-in-the-middle (MiTM) attack, despite the attacker not having gained access to the server's private key itself, aka a ROBOT attack.","status":"published","published":"2017-11-17T19:00:00Z","modified":"2024-08-05T15:18:49Z","updated_at":"2026-11-03T02:39:13.005576Z"}],"ghsa":[{"id":"GHSA-j523-gf5p-f8pm","title":"On BIG-IP versions 11.6.0-11.6.2 (fixed in 11.6.2 HF1), 12.0.0-12.1.2 HF1 (fixed in 12.1.2 HF2),...","description":"On BIG-IP versions 11.6.0-11.6.2 (fixed in 11.6.2 HF1), 12.0.0-12.1.2 HF1 (fixed in 12.1.2 HF2), or 13.0.0-13.0.0 HF2 (fixed in 13.0.0 HF3) a virtual server configured with a Client SSL profile may be vulnerable to an Adaptive Chosen Ciphertext attack (AKA Bleichenbacher attack) against RSA, which when exploited, may result in plaintext recovery of encrypted messages and/or a Man-in-the-middle (MiTM) attack, despite the attacker not having gained access to the server's private key itself, aka a ROBOT attack.","status":"published","published":"2022-05-13T01:05:53Z","modified":"2025-04-20T03:49:51Z","cvss":[{"version":"3.0","score":7.4,"vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"high"}],"cwes":["CWE-203"],"updated_at":"2026-11-02T15:01:56.152144Z"}],"nvd":[{"id":"CVE-2017-6168","description":"On BIG-IP versions 11.6.0-11.6.2 (fixed in 11.6.2 HF1), 12.0.0-12.1.2 HF1 (fixed in 12.1.2 HF2), or 13.0.0-13.0.0 HF2 (fixed in 13.0.0 HF3) a virtual server configured with a Client SSL profile may be vulnerable to an Adaptive Chosen Ciphertext attack (AKA Bleichenbacher attack) against RSA, which when exploited, may result in plaintext recovery of encrypted messages and/or a Man-in-the-middle (MiTM) attack, despite the attacker not having gained access to the server's private key itself, aka a ROBOT attack.","status":"published","published":"2017-11-17T19:29:00.217Z","modified":"2026-06-17T01:21:53.147Z","cvss":[{"version":"3.0","score":7.4,"vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"high","assessor":"primary"},{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:P/I:N/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-203"],"updated_at":"2026-11-02T14:04:08.635428Z"}]}}