OpenWrt Access Control /etc/config/rpcd access control

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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A vulnerability classified as critical has been found in OpenWrt (the affected version unknown). This affects an unknown code block of the file /etc/config/rpcd of the component Access Control. The manipulation with an unknown input leads to a privilege escalation vulnerability. CWE is classifying the issue as CWE-284. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

OpenWrt mishandles access control in /etc/config/rpcd and the /usr/share/rpcd/acl.d files, which allows remote authenticated users to call arbitrary methods (i.e., achieve ubus access over HTTP) that were only supposed to be accessible to a specific user, as demonstrated by the file, log, and service namespaces, potentially leading to remote Information Disclosure or Code Execution.

The bug was discovered 05/16/2018. The weakness was released 06/19/2018 (Website). It is possible to read the advisory at This vulnerability is uniquely identified as CVE-2018-11116 since 05/15/2018. It is possible to initiate the attack remotely. The requirement for exploitation is a authentication. 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 34 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.



CPE 2.3infoedit

CPE 2.2infoedit


VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.5

VulDB Base Score: 6.3
VulDB Temp Score: 6.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔍



VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍


Class: Privilege escalation
CWE: CWE-284
ATT&CK: T1068

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔍


Threat Intelligenceinfoedit

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


Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍


05/15/2018 🔍
05/16/2018 +1 days 🔍
06/19/2018 +33 days 🔍
06/19/2018 +0 days 🔍
06/20/2018 +1 days 🔍
02/20/2020 +610 days 🔍


Status: Not defined

CVE: CVE-2018-11116 (🔍)


Created: 06/20/2018 01:31 PM
Updated: 02/20/2020 01:48 PM
Changes: (1) vulnerability_discoverydate
Complete: 🔍


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