VDB-259372 · CVE-2024-2103 · GCVE-0-2024-2103

Schweitzer Engineering Laboratories SEL-700BT Motor Bus Transfer Relay inclusion of undocumented features or chicken bits

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.
5.5	$0-$5k	0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in Schweitzer Engineering Laboratories SEL-700BT Motor Bus Transfer Relay, SEL-700G Generator Protection Relay, SEL-751 Feeder Protection Relay, SEL-787-2, -3, -4 Transformer Protection Relay and SEL-787Z High-Impedance Differential Relay. This vulnerability affects unknown code. Executing a manipulation can lead to inclusion of undocumented features or chicken bits. This vulnerability is tracked as CVE-2024-2103. The attack can be launched remotely. No exploit exists. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic was found in Schweitzer Engineering Laboratories SEL-700BT Motor Bus Transfer Relay, SEL-700G Generator Protection Relay, SEL-751 Feeder Protection Relay, SEL-787-2, -3, -4 Transformer Protection Relay and SEL-787Z High-Impedance Differential Relay. This vulnerability affects an unknown functionality. The manipulation with an unknown input leads to a inclusion of undocumented features or chicken bits vulnerability. The CWE definition for the vulnerability is CWE-1242. The device includes chicken bits or undocumented features that can create entry points for unauthorized actors. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Inclusion of undocumented features vulnerability accessible when logged on with a privileged access level on the following Schweitzer Engineering Laboratories relays could allow the relay to behave unpredictably. * SEL-700BT Motor Bus Transfer Relay * SEL-700G Generator Protection Relay * SEL-710-5 Motor Protection Relay * SEL-751 Feeder Protection Relay * SEL-787-2/-3/-4 Transformer Protection Relay * SEL-787Z High-Impedance Differential Relay See product instruction manual appendix A dated 20240308 for more details regarding the SEL-751 Feeder Protection Relay. For more information for the other affected products, see their instruction manuals dated 20240329.

The advisory is shared for download at selinc.com. This vulnerability was named CVE-2024-2103 since 03/01/2024. The exploitation appears to be easy. The attack can be initiated remotely. Additional levels of successful authentication are required for exploitation. There are neither technical details nor an exploit publicly available.

Upgrading eliminates this vulnerability.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

Schweitzer Engineering Laboratories

Name

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.6
VulDB Meta Temp Score: 5.5

VulDB Base Score: 4.7
VulDB Temp Score: 4.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 6.5
CNA Vector (Schweitzer Engineering Laboratories, Inc.): 🔍

CVSSv2info

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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Inclusion of undocumented features or chicken bits
CWE: CWE-1242 / CWE-912
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

03/01/2024 🔍
04/04/2024 +33 days 🔍
04/04/2024 +0 days 🔍
05/09/2024 +35 days 🔍

Sourcesinfo

Advisory: selinc.com
Status: Confirmed

CVE: CVE-2024-2103 (🔍)
GCVE (CVE): GCVE-0-2024-2103
GCVE (VulDB): GCVE-100-259372

Entryinfo

Created: 04/04/2024 17:58
Updated: 05/09/2024 14:16
Changes: 04/04/2024 17:58 (59), 05/09/2024 14:16 (1)
Complete: 🔍
Cache ID: 216::103