From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from firstgate.proxmox.com (firstgate.proxmox.com [212.224.123.68]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by lists.proxmox.com (Postfix) with ESMTPS id EF04891A12 for ; Thu, 15 Feb 2024 16:20:47 +0100 (CET) Received: from firstgate.proxmox.com (localhost [127.0.0.1]) by firstgate.proxmox.com (Proxmox) with ESMTP id AC09D16716 for ; Thu, 15 Feb 2024 16:20:17 +0100 (CET) Received: from proxmox-new.maurer-it.com (proxmox-new.maurer-it.com [94.136.29.106]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by firstgate.proxmox.com (Proxmox) with ESMTPS for ; Thu, 15 Feb 2024 16:20:15 +0100 (CET) Received: from proxmox-new.maurer-it.com (localhost.localdomain [127.0.0.1]) by proxmox-new.maurer-it.com (Proxmox) with ESMTP id 435A24841A for ; Thu, 15 Feb 2024 16:20:15 +0100 (CET) From: Stefan Sterz To: pbs-devel@lists.proxmox.com Date: Thu, 15 Feb 2024 16:19:59 +0100 Message-Id: <20240215152001.269490-11-s.sterz@proxmox.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240215152001.269490-1-s.sterz@proxmox.com> References: <20240215152001.269490-1-s.sterz@proxmox.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-SPAM-LEVEL: Spam detection results: 0 AWL -0.082 Adjusted score from AWL reputation of From: address BAYES_00 -1.9 Bayes spam probability is 0 to 1% DMARC_MISSING 0.1 Missing DMARC policy KAM_DMARC_STATUS 0.01 Test Rule for DKIM or SPF Failure with Strict Alignment SPF_HELO_NONE 0.001 SPF: HELO does not publish an SPF Record SPF_PASS -0.001 SPF: sender matches SPF record T_SCC_BODY_TEXT_LINE -0.01 - Subject: [pbs-devel] [PATCH proxmox-backup 10/12] auth: upgrade hashes on user log in X-BeenThere: pbs-devel@lists.proxmox.com X-Mailman-Version: 2.1.29 Precedence: list List-Id: Proxmox Backup Server development discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 15 Feb 2024 15:20:48 -0000 if a users password is not hashed with the latest password hashing function, re-hash the password with the newest hashing function. we can only do this on login and after the password has been validated, as this is the only point at which we have access to the plain text password and also know that it matched the original password. Signed-off-by: Stefan Sterz --- src/auth.rs | 18 ++++++++++++++---- 1 file changed, 14 insertions(+), 4 deletions(-) diff --git a/src/auth.rs b/src/auth.rs index c89314f5..3379577f 100644 --- a/src/auth.rs +++ b/src/auth.rs @@ -28,20 +28,30 @@ pub const TERM_PREFIX: &str = "PBSTERM"; struct PbsAuthenticator; -const SHADOW_CONFIG_FILENAME: &str = configdir!("/shadow.json"); +pub(crate) const SHADOW_CONFIG_FILENAME: &str = configdir!("/shadow.json"); impl Authenticator for PbsAuthenticator { fn authenticate_user<'a>( - &self, + &'a self, username: &'a UsernameRef, password: &'a str, - _client_ip: Option<&'a IpAddr>, + client_ip: Option<&'a IpAddr>, ) -> Pin> + Send + 'a>> { Box::pin(async move { let data = proxmox_sys::fs::file_get_json(SHADOW_CONFIG_FILENAME, Some(json!({})))?; match data[username.as_str()].as_str() { None => bail!("no password set"), - Some(enc_password) => proxmox_sys::crypt::verify_crypt_pw(password, enc_password)?, + Some(enc_password) => { + proxmox_sys::crypt::verify_crypt_pw(password, enc_password)?; + + // if the password hash is not based on the current hashing function (as + // identified by its prefix), rehash the password. + if !enc_password.starts_with(proxmox_sys::crypt::HASH_PREFIX) { + // ignore errors here, we already authenticated the user, re-hashing the + // password should not prevent them from logging in. + let _ = self.store_password(username, password, client_ip); + } + } } Ok(()) }) -- 2.39.2