VDB-98438 · CVE-2016-6225 · OpenVAS 867773

Percona XtraBackup up to 2.3.5/2.4.4 xbcrypt inadequate encryption

CVSS Meta Temp Score
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CTI Interest Score
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A vulnerability was found in Percona XtraBackup up to 2.3.5/2.4.4 (Backup Software) and classified as critical. Affected by this issue is an unknown code of the component xbcrypt. The manipulation with an unknown input leads to a inadequate encryption vulnerability. Using CWE to declare the problem leads to CWE-326. The product stores or transmits sensitive data using an encryption scheme that is theoretically sound, but is not strong enough for the level of protection required. Impacted is confidentiality, integrity, and availability. CVE summarizes:

xbcrypt in Percona XtraBackup before 2.3.6 and 2.4.x before 2.4.5 does not properly set the initialization vector (IV) for encryption, which makes it easier for context-dependent attackers to obtain sensitive information from encrypted backup files via a Chosen-Plaintext attack. NOTE: this vulnerability exists because of an incomplete fix for CVE-2013-6394.

The bug was discovered 11/11/2016. The weakness was presented 03/23/2017 (Website). The advisory is available at lists.fedoraproject.org. This vulnerability is handled as CVE-2016-6225 since 07/15/2016. The exploitation is known to be difficult. The attack may be launched remotely. No form of authentication is required for exploitation. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1600 by the MITRE ATT&CK project.

The vulnerability was handled as a non-public zero-day exploit for at least 82 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 96935 (Fedora 25 : percona-xtrabackup (2017-6382ea8d57)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks and running in the context l.

Upgrading to version 2.3.6 or 2.4.5 eliminates this vulnerability. A possible mitigation has been published before and not just after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (96935). See VDB-65747, VDB-154384, VDB-201225 and VDB-230993 for similar entries.






CPE 2.3info

CPE 2.2info


VulDB CVSS-B Score: 🔍
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VulDB Meta Base Score: 5.7
VulDB Meta Temp Score: 5.6

VulDB Base Score: 5.6
VulDB Temp Score: 5.4
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NVD Base Score: 5.9
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Class: Inadequate encryption
CWE: CWE-326 / CWE-310

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

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Nessus ID: 96935
Nessus Name: Fedora 25 : percona-xtrabackup (2017-6382ea8d57)
Nessus File: 🔍
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OpenVAS ID: 867773
OpenVAS Name: Fedora Update for percona-xtrabackup FEDORA-2017-6382ea8d57
OpenVAS File: 🔍
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Threat Intelligenceinfo

Interest: 🔍
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Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: XtraBackup 2.3.6/2.4.5
Patch: github.com


07/15/2016 🔍
11/11/2016 +119 days 🔍
02/01/2017 +82 days 🔍
02/02/2017 +1 days 🔍
03/23/2017 +49 days 🔍
03/23/2017 +0 days 🔍
03/24/2017 +1 days 🔍
11/14/2022 +2061 days 🔍


Advisory: FEDORA-2017-6382ea8d57
Status: Not defined
Confirmation: 🔍

CVE: CVE-2016-6225 (🔍)
OSVDB: - CVE-2016-6225 - Percona - XtraBackup - Chosen-Plaintext Issue

See also: 🔍


Created: 03/24/2017 07:26 AM
Updated: 11/14/2022 02:28 PM
Changes: 03/24/2017 07:26 AM (72), 09/12/2020 03:17 PM (3), 11/14/2022 02:26 PM (4), 11/14/2022 02:28 PM (1)
Complete: 🔍
Cache ID: 44:189:40


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