Date: Wed, 30 Dec 2015 14:29:18 +0100 From: Daniele Bianco <danbia@...rt.org> To: oss-security@...ts.openwall.com, bugtraq@...urityfocus.com, ocert-announce@...ts.ocert.org Subject: [oCERT 2015-012] Ganeti multiple issues #2015-012 Ganeti multiple issues Description: Ganeti, an open source virtualization manager, suffers from multiple issues in its RESTful control interface (RAPI). The distributed replicated storage (DRBD) secret is leaked by the RAPI interface when job results are requested. Leveraging on the knowledge of this secret, a malicious user who had already gained access to the storage network of the cluster can retrieve instance data more easily and reliably. The RAPI interface is also vulnerable to a DoS condition, triggered via SSL parameter renegotiation issued by a malicious client. The condition leads to resource exhaustion on the master node. Affected version: Ganeti <=2.9.6, <=2.10.7, <=2.11.7, <=2.12.5, <=2.13.2, <=2.14.1, <=2.15.1 Fixed version: Ganeti >=2.9.7, >=2.10.8, >=2.11.8, >=2.12.6, >=2.13.3, >=2.14.2, >=2.15.2 Credit: vulnerability reported by Pierre Kim <pierre [dot] kim [dot] sec [at] gmail [dot] com>. CVE: CVE-2015-7944 (DoS), CVE-2015-7945 (DRBD secret leak) Timeline: 2015-12-21: vulnerability report received 2015-12-24: contacted affected vendors 2015-12-30: advisory release References: http://downloads.ganeti.org/releases Permalink: http://www.ocert.org/advisories/ocert-2015-012.html -- Daniele Bianco Open Source Computer Security Incident Response Team <danbia@...rt.org> http://www.ocert.org GPG Key 0x9544A497 GPG Key fingerprint = 88A7 43F4 F28F 1B9D 6F2D 4AC5 AE75 822E 9544 A497
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