VDB-98947 · CVE-2016-10225 · BID 93442

Allwinner 3.4 on H3/A83T/H8 sunxi-debug Driver sunxi_debug rootmydevice access control

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.8$0-$5k0.00

Summaryinfo

A vulnerability identified as critical has been detected in Allwinner 3.4 on H3/A83T/H8. This affects an unknown part of the file /proc/sunxi_debug/sunxi_debug of the component sunxi-debug Driver. This manipulation of the argument rootmydevice causes access control. This vulnerability is tracked as CVE-2016-10225. The attack is restricted to local execution. No exploit exists.

Detailsinfo

A vulnerability classified as critical was found in Allwinner 3.4 on H3/A83T/H8. Affected by this vulnerability is some unknown functionality of the file /proc/sunxi_debug/sunxi_debug of the component sunxi-debug Driver. The manipulation of the argument rootmydevice with an unknown input leads to a access control vulnerability. The CWE definition for the vulnerability is CWE-264. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

The sunxi-debug driver in Allwinner 3.4 legacy kernel for H3, A83T and H8 devices allows local users to gain root privileges by sending "rootmydevice" to /proc/sunxi_debug/sunxi_debug.

The bug was discovered 05/10/2016. The weakness was disclosed 03/27/2017 (oss-sec). It is possible to read the advisory at openwall.com. This vulnerability is known as CVE-2016-10225 since 02/15/2017. Attacking locally is a requirement. A single authentication is required for exploitation. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1068 according to MITRE ATT&CK.

The vulnerability was handled as a non-public zero-day exploit for at least 321 days. During that time the estimated underground price was around $0-$5k.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 93442†). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.8
VulDB Meta Temp Score: 7.8

VulDB Base Score: 7.8
VulDB Temp Score: 7.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Access control
CWE: CWE-264
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

05/10/2016 🔍
10/06/2016 +149 days 🔍
02/15/2017 +132 days 🔍
03/27/2017 +40 days 🔍
03/27/2017 +0 days 🔍
03/28/2017 +1 days 🔍
03/28/2017 +0 days 🔍

Sourcesinfo

Advisory: openwall.com
Status: Not defined
Confirmation: 🔍

CVE: CVE-2016-10225 (🔍)
GCVE (CVE): GCVE-0-2016-10225
GCVE (VulDB): GCVE-100-98947
SecurityFocus: 93442 - Allwinner Linux kernel 'sunxi-debug.c' Local Privilege Escalation Vulnerability
OSVDB: - CVE-2016-10225 - Allwinner - Multiple Products - Privilege Escalation Issue

Entryinfo

Created: 03/28/2017 22:05
Changes: 03/28/2017 22:05 (66)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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