VDB-160127 · CVE-2019-11855 · GCVE-0-2019-11855

ALEOS up to 4.4.8/4.9.4/4.11.x RPC Server privileges management

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.
7.7	$0-$5k	0.00

Summaryinfo

A vulnerability identified as critical has been detected in ALEOS up to 4.4.8/4.9.4/4.11.x. Affected by this vulnerability is an unknown functionality of the component RPC Server. The manipulation leads to privileges management. This vulnerability is uniquely identified as CVE-2019-11855. The attack is possible to be carried out remotely. No exploit exists. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in ALEOS up to 4.4.8/4.9.4/4.11.x. It has been rated as critical. This issue affects some unknown functionality of the component RPC Server. The manipulation with an unknown input leads to a privileges management vulnerability. Using CWE to declare the problem leads to CWE-269. The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

An RPC server is enabled by default on the gateway's LAN of ALEOS before 4.12.0, 4.9.5, and 4.4.9.

The weakness was disclosed 08/21/2020. The identification of this vulnerability is CVE-2019-11855 since 05/09/2019. The exploitation is known to be difficult. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1068 according to MITRE ATT&CK.

Upgrading to version 4.4.9, 4.9.5 or 4.12.0 eliminates this vulnerability.

The entries VDB-160131, VDB-160130, VDB-160129 and VDB-160128 are pretty similar. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Name

ALEOS

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.1
VulDB Meta Temp Score: 7.9

VulDB Base Score: 8.1
VulDB Temp Score: 7.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.1
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

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

Exploitinginfo

Class: Privileges management
CWE: CWE-269 / 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: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: ALEOS 4.4.9/4.9.5/4.12.0

Timelineinfo

05/09/2019 🔍
08/21/2020 +470 days 🔍
08/22/2020 +1 days 🔍
11/10/2020 +80 days 🔍

Sourcesinfo

Status: Not defined

CVE: CVE-2019-11855 (🔍)
GCVE (CVE): GCVE-0-2019-11855
GCVE (VulDB): GCVE-100-160127
See also: 🔍

Entryinfo

Created: 08/22/2020 06:51
Updated: 11/10/2020 21:15
Changes: 08/22/2020 06:51 (37), 08/22/2020 06:56 (11), 11/10/2020 21:15 (1)
Complete: 🔍
Cache ID: 216::103