VDB-99561 · CVE-2017-7622 · GCVE-0-2017-7622

DDE 15.0/15.1/15.2/15.3 dde-daemon DoWriteGrubSettings access control

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
8.3	$0-$5k	0.00

Summaryinfo

A vulnerability was found in DDE 15.0/15.1/15.2/15.3. It has been rated as critical. Affected by this vulnerability is the function DoWriteGrubSettings of the component dde-daemon. Performing a manipulation results in access control. This vulnerability is identified as CVE-2017-7622. The attack is only possible with local access. There is not any exploit available.

Detailsinfo

A vulnerability, which was classified as critical, was found in DDE 15.0/15.1/15.2/15.3. This affects the function DoWriteGrubSettings of the component dde-daemon. The manipulation with an unknown input leads to a access control vulnerability. CWE is classifying the issue as CWE-264. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

dde-daemon, the daemon process of DDE (Deepin Desktop Environment) 15.0 through 15.3, runs with root privileges and hardly does anything to identify the user who calls the function through D-Bus. Anybody can change the grub config, even to append some arguments to make a backdoor or privilege escalation, by calling DoWriteGrubSettings() provided by dde-daemon.

The bug was discovered 04/11/2017. The weakness was released 04/10/2017 (Website). The advisory is shared at github.com. This vulnerability is uniquely identified as CVE-2017-7622 since 04/10/2017. An attack has to be approached locally. The successful exploitation requires a authentication. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1068 for this issue.

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

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.3
VulDB Meta Temp Score: 8.3

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

NVD Base Score: 8.8
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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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: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

04/10/2017 🔍
04/10/2017 +0 days 🔍
04/10/2017 +0 days 🔍
04/11/2017 +1 days 🔍
04/11/2017 +0 days 🔍
08/28/2020 +1235 days 🔍

Sourcesinfo

Advisory: github.com
Status: Not defined

CVE: CVE-2017-7622 (🔍)
GCVE (CVE): GCVE-0-2017-7622
GCVE (VulDB): GCVE-100-99561
OSVDB: - CVE-2017-7622 - deepin - Privilege Escalation Issue

Entryinfo

Created: 04/11/2017 09:48
Updated: 08/28/2020 17:24
Changes: 04/11/2017 09:48 (55), 08/28/2020 17:24 (2)
Complete: 🔍
Cache ID: 216:E53:103