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CVE-2018-11116 Information disclosure

Routine
Remediate Within 6 Months

CVE Information

Original CVE data

Published:
Updated:

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

CWE: CWE-732
CVSS v26.5
AV:N/AC:L/AU:S/C:P/I:P/A:P
CVSS v38.8
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
References
http://blog.hac425.top/2018/05/16/openwrt_rpcd_acl_fail.html
https://forum.openwrt.org/t/rpcd-vulnerability-reported-on-vultdb/16497/3
Affected Vendors

Openwrt - (1)

Basic Analysis

Common vulnerability metrics

Vulnerabilty type as detected by PRIOnengine

Information disclosure

CVSS Scores as calculated by PRIOnengine
CVSS v26.5
AV:N/AC:L/AU:S/C:P/I:P/A:P
CVSS v38.8
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
MITRE CWE Top 25

Vulnerability weakness type is in the top 25 CWEs according to MITRE. View Mitre Top 25 CWEs

Exploits

No exploit code is reported to exist.

Active Exploitation

Vulnerability is not in CISA's Known Exploited Vulnerabilities (KEV) catalog. See the KEV Catalog

Social Network Activity

-

Threat Actor Activity

No sightings of the vulnerability within threat reports.

Cybersecurity Frameworks

How the vulnerability maps against various cybersecurity frameworks

T1591 - Gather Victim Org Information
T1590 - Gather Victim Network Information
T1589.001 - Gather Victim Identity Information (Credentials)
T1552 - Unsecured Credentials
T1499.004 - Endpoint Denial of Service (Application or System Exploitation)
T1203 - Exploitation for Client Execution
T1082 - System Information Discovery
T1059 - Command and Scripting Interpreter
T1003 - OS Credential Dumping

Compliance Impact

How the submited vulnerability affects compliance

PCI DSS v3.2.1-6.5.5 - Improper Error Handling

Web Application Security Frameworks

Applicable if the issue likely affects a web application

WASC-19 - SQL Injection