Siemens RFID 181-EIP DHCP Response input validation

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.
7.5$5k-$25k0.00

A vulnerability classified as critical has been found in Siemens RFID 181-EIP, RuggedCom WiMAX, Scalance X-200, Scalance X-200 IRT, Scalance X-204RNA, Scalance X-300, Scalance X-408, Scalance X-414 and Simatic RF192C (SCADA Software). This affects an unknown code block of the component DHCP Response Handler. The manipulation with an unknown input leads to a input validation vulnerability. CWE is classifying the issue as CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

A vulnerability has been identified in RFID 181-EIP (All versions), RUGGEDCOM WiMAX (V4.4 and V4.5), SCALANCE X-200 (All versions < V5.2.3), SCALANCE X-200 IRT (All versions < V5.4.1), SCALANCE X-204RNA (All versions), SCALANCE X-300 (All versions), SCALANCE X408 (All versions), SCALANCE X414 (All versions), SIMATIC RF182C (All versions). Unprivileged remote attackers located in the same local network segment (OSI Layer 2) could gain remote code execution on the affected products by sending a specially crafted DHCP response to a client's DHCP request.

The bug was discovered 06/14/2018. The weakness was published 06/14/2018 (Website). The advisory is shared at cert-portal.siemens.com. This vulnerability is uniquely identified as CVE-2018-4833 since 01/02/2018. Access to the local network is required for this attack. No form of authentication is needed for exploitation. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 03/27/2023).

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

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 104482†). Similar entries are available at VDB-13397, VDB-20537 and VDB-127650.

Productinfo

Type

Vendor

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

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: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
unlockunlockunlockunlockunlockunlock
unlockunlockunlockunlockunlockunlock
unlockunlockunlockunlockunlockunlock

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

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Dayunlockunlockunlockunlock
Todayunlockunlockunlockunlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

Timelineinfo

01/02/2018 🔍
06/14/2018 +162 days 🔍
06/14/2018 +0 days 🔍
06/14/2018 +0 days 🔍
06/14/2018 +0 days 🔍
06/15/2018 +1 days 🔍
03/27/2023 +1746 days 🔍

Sourcesinfo

Vendor: siemens.com

Advisory: ssa-181018
Status: Not defined

CVE: CVE-2018-4833 (🔍)
SecurityFocus: 104482 - Multiple Siemens Products CVE-2018-4833 Remote Code Execution Vulnerability

See also: 🔍

Entryinfo

Created: 06/15/2018 07:32
Updated: 03/27/2023 14:03
Changes: 06/15/2018 07:32 (58), 02/19/2020 15:41 (3), 03/27/2023 14:03 (3)
Complete: 🔍
Cache ID: 3:1AD:103

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Do you want to use VulDB in your project?

Use the official API to access entries easily!