{"id":74097,"date":"2025-11-21T20:35:15","date_gmt":"2025-11-21T17:05:15","guid":{"rendered":"https:\/\/afaghhosting.net\/blog\/cve-2025-13470-rnp-0-18-0-vulnerable-pkesk-session-keys\/"},"modified":"2025-11-21T20:35:15","modified_gmt":"2025-11-21T17:05:15","slug":"cve-2025-13470-rnp-0-18-0-vulnerable-pkesk-session-keys","status":"publish","type":"post","link":"https:\/\/afaghhosting.net\/blog\/cve-2025-13470-rnp-0-18-0-vulnerable-pkesk-session-keys\/","title":{"rendered":"CVE-2025-13470 &#8211; RNP 0.18.0 Vulnerable PKESK session keys"},"content":{"rendered":"<p>CVE ID : CVE-2025-13470<\/p>\n<p>Published :  Nov. 21, 2025, 5:05 p.m. | 10\u00a0minutes ago<\/p>\n<p>Description : In RNP version 0.18.0 a refactoring regression causes the symmetric<br \/>\nsession key used for Public-Key Encrypted Session Key (PKESK) packets to<br \/>\n be left uninitialized except for zeroing, resulting in it always being<br \/>\nan all-zero byte array.<\/p>\n<p>Any data encrypted using public-key encryption<br \/>\nin this release can be decrypted trivially by supplying an all-zero<br \/>\nsession key, fully compromising confidentiality.<\/p>\n<p>The vulnerability affects only public key encryption (PKESK packets).\u00a0 Passphrase-based encryption (SKESK packets) is not affected.<\/p>\n<p>Root cause: Vulnerable session key buffer used in PKESK packet generation.<\/p>\n<p>The defect was introduced in commit `7bd9a8dc356aae756b40755be76d36205b6b161a` where initialization<br \/>\nlogic inside `encrypted_build_skesk()` only randomized the key for the<br \/>\nSKESK path and omitted it for the PKESK path.<\/p>\n<p>Severity: 7.7 | HIGH<\/p>\n<p>Visit the link for more details, such as CVSS details, affected products, timeline, and more&#8230;\u00a0<\/p>\n","protected":false},"excerpt":{"rendered":"<p>CVE ID : CVE-2025-13470 Published : Nov. 21, 2025, 5:05 p.m. | 10\u00a0minutes ago Description : In RNP version 0.18.0 a refactoring regression causes the symmetric session key used for Public-Key Encrypted Session Key (PKESK) packets to be left uninitialized except for zeroing, resulting in it always being an all-zero byte array. Any data encrypted &hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[26],"tags":[],"class_list":["post-74097","post","type-post","status-publish","format-standard","hentry","category-vulnerability"],"_links":{"self":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/74097","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/comments?post=74097"}],"version-history":[{"count":0,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/74097\/revisions"}],"wp:attachment":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/media?parent=74097"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/categories?post=74097"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/tags?post=74097"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}