VDB-119691 · CVE-2018-11116 · GCVE-0-2018-11116

OpenWrt Access Control /etc/config/rpcd access control ⚔ [Disputed]

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.
8.0	$0-$5k	0.00

Summaryinfo

A vulnerability was found in OpenWrt. It has been classified as critical. Affected by this vulnerability is an unknown functionality of the file /etc/config/rpcd of the component Access Control. Performing a manipulation results in access control. This vulnerability is identified as CVE-2018-11116. The attack can be initiated remotely. There is not any exploit available. There is ongoing doubt regarding the real existence of this vulnerability.

Detailsinfo

A vulnerability classified as critical has been found in OpenWrt (unknown version). 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 access control vulnerability. CWE is classifying the issue as CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. 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. NOTE: The developer disputes this as a vulnerability, indicating that rpcd functions appropriately

The bug was discovered 05/16/2018. The weakness was released 06/19/2018 (Website). It is possible to read the advisory at blog.hac425.top. 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. The real existence of this vulnerability is still doubted at the moment.

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

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

Productinfo

Name

OpenWrt

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.0
VulDB Meta Temp Score: 8.0

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

NVD Base Score: 8.8
NVD Vector: 🔍

CNA Base Score: 8.8
CNA Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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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-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
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

05/15/2018 🔍
05/16/2018 +1 days 🔍
06/19/2018 +33 days 🔍
06/19/2018 +0 days 🔍
06/20/2018 +1 days 🔍
08/05/2024 +2238 days 🔍

Sourcesinfo

Advisory: blog.hac425.top
Status: Not defined
Disputed: 🔍

CVE: CVE-2018-11116 (🔍)
GCVE (CVE): GCVE-0-2018-11116
GCVE (VulDB): GCVE-100-119691

Entryinfo

Created: 06/20/2018 13:31
Updated: 08/05/2024 11:18
Changes: 06/20/2018 13:31 (56), 02/20/2020 13:48 (1), 06/05/2024 10:30 (29), 08/05/2024 11:18 (2)
Complete: 🔍
Cache ID: 216::103