CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
5.9 | $0-$5k | 0.00 |
A vulnerability, which was classified as problematic, has been found in Percona Server up to 5.5.51/5.6.32/5.7.14. This issue affects an unknown function. The manipulation with an unknown input leads to a race condition vulnerability. Using CWE to declare the problem leads to CWE-362. The product contains a code sequence that can run concurrently with other code, and the code sequence requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence that is operating concurrently. Impacted is confidentiality, integrity, and availability.
The bug was discovered 09/12/2016. The weakness was presented 11/01/2016 by Dawid Golunski as MySQL / MariaDB / PerconaDB - Privilege Escalation / Race Condition Exploit [CVE-2016-6663 / OCVE-2016-5616] as confirmed mailinglist post (Full-Disclosure). The advisory is shared at seclists.org. The public release was coordinated in cooperation with Percona. The identification of this vulnerability is CVE-2016-6663 since 08/10/2016. The exploitation is known to be easy. An attack has to be approached locally. The successful exploitation requires a simple authentication. Technical details are unknown but a public exploit is available. The advisory points out:
An independent research has revealed a race condition vulnerability which affects MySQl, MariaDB and PerconaDB databases. The vulnerability can allow a local system user with access to the affected database in the context of a low-privileged account (CREATE/INSERT/SELECT grants) to escalate their privileges and execute arbitrary code as the database system user (typically 'mysql'). Successful exploitation would allow an attacker to gain full read/write access to all of the files (including configuration files) and databases belonging to the affected database server.
A public exploit has been developed by Dawid Golunski in ANSI C and been published immediately after the advisory. The exploit is available at legalhackers.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 50 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 97329 (Amazon Linux AMI : mysql51 (ALAS-2017-800)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Amazon Linux Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 236167 (Red Hat Update for mariadb (RHSA-2016:2595)).
Upgrading to version 5.5.51-38.2, 5.6.32-78-1 or 5.7.14-8 eliminates this vulnerability. A possible mitigation has been published 5 months after the disclosure of the vulnerability.
The vulnerability is also documented in the databases at Tenable (97329) and Exploit-DB (40360). See 4597, 4598, 20222 and 79101 for similar entries.
Product
Vendor
Name
Version
- 5.5.0
- 5.5.1
- 5.5.2
- 5.5.3
- 5.5.4
- 5.5.5
- 5.5.6
- 5.5.7
- 5.5.8
- 5.5.9
- 5.5.10
- 5.5.11
- 5.5.12
- 5.5.13
- 5.5.14
- 5.5.15
- 5.5.16
- 5.5.17
- 5.5.18
- 5.5.19
- 5.5.20
- 5.5.21
- 5.5.22
- 5.5.23
- 5.5.24
- 5.5.25
- 5.5.26
- 5.5.27
- 5.5.28
- 5.5.29
- 5.5.30
- 5.5.31
- 5.5.32
- 5.5.33
- 5.5.34
- 5.5.35
- 5.5.36
- 5.5.37
- 5.5.38
- 5.5.39
- 5.5.40
- 5.5.41
- 5.5.42
- 5.5.43
- 5.5.44
- 5.5.45
- 5.5.46
- 5.5.47
- 5.5.48
- 5.5.49
- 5.5.50
- 5.5.51
- 5.6.0
- 5.6.1
- 5.6.2
- 5.6.3
- 5.6.4
- 5.6.5
- 5.6.6
- 5.6.7
- 5.6.8
- 5.6.9
- 5.6.10
- 5.6.11
- 5.6.12
- 5.6.13
- 5.6.14
- 5.6.15
- 5.6.16
- 5.6.17
- 5.6.18
- 5.6.19
- 5.6.20
- 5.6.21
- 5.6.22
- 5.6.23
- 5.6.24
- 5.6.25
- 5.6.26
- 5.6.27
- 5.6.28
- 5.6.29
- 5.6.30
- 5.6.31
- 5.6.32
- 5.7.0
- 5.7.1
- 5.7.2
- 5.7.3
- 5.7.4
- 5.7.5
- 5.7.6
- 5.7.7
- 5.7.8
- 5.7.9
- 5.7.10
- 5.7.11
- 5.7.12
- 5.7.13
- 5.7.14
License
CPE 2.3
CPE 2.2
Video
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 6.1VulDB Meta Temp Score: 5.9
VulDB Base Score: 5.3
VulDB Temp Score: 4.8
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 7.0
NVD Vector: 🔍
CVSSv2
AV | AC | Au | C | I | A |
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Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
VulDB Base Score: 🔍
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VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: Race conditionCWE: CWE-362
CAPEC: 🔍
ATT&CK: 🔍
Local: Yes
Remote: No
Availability: 🔍
Access: Public
Status: Proof-of-Concept
Author: Dawid Golunski
Programming Language: 🔍
Download: 🔍
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
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Today | unlock | unlock | unlock | unlock |
Nessus ID: 97329
Nessus Name: Amazon Linux AMI : mysql51 (ALAS-2017-800)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
OpenVAS ID: 703711
OpenVAS Name: Debian Security Advisory DSA 3711-1 (mariadb-10.0 - security update)
OpenVAS File: 🔍
OpenVAS Family: 🔍
Qualys ID: 🔍
Qualys Name: 🔍
Exploit-DB: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍
Exploit Delay Time: 🔍
Upgrade: Server 5.5.51-38.2/5.6.32-78-1/5.7.14-8
Patch: github.com
Timeline
08/10/2016 🔍09/12/2016 🔍
09/12/2016 🔍
11/01/2016 🔍
11/01/2016 🔍
11/02/2016 🔍
12/13/2016 🔍
02/22/2017 🔍
02/23/2017 🔍
09/29/2022 🔍
Sources
Advisory: MySQL / MariaDB / PerconaDB - Privilege Escalation / Race Condition Exploit [CVE-2016-6663 / OCVE-2016-5616]Researcher: Dawid Golunski
Status: Confirmed
Confirmation: 🔍
Coordinated: 🔍
CVE: CVE-2016-6663 (🔍)
OVAL: 🔍
SecurityFocus: 92911 - Oracle MySQL CVE-2016-6663 Unspecified Security Vulnerability
scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍
Entry
Created: 11/02/2016 07:48Updated: 09/29/2022 09:10
Changes: 11/02/2016 07:48 (88), 07/15/2019 16:42 (5), 09/29/2022 09:10 (5)
Complete: 🔍
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