VDB-255724 · CVE-2024-21838 · GCVE-0-2024-21838

Gallagher Command Centre Server Email injection

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.
5.2	$0-$5k	0.00

Summaryinfo

A vulnerability classified as problematic was found in Gallagher Command Centre Server. The impacted element is an unknown function of the component Email Handler. Executing a manipulation can lead to injection. The identification of this vulnerability is CVE-2024-21838. The attack may be launched remotely. There is no exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Gallagher Command Centre Server. It has been declared as problematic. This vulnerability affects an unknown function of the component Email Handler. The manipulation with an unknown input leads to a injection vulnerability. The CWE definition for the vulnerability is CWE-74. The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component. As an impact it is known to affect integrity. CVE summarizes:

Improper neutralization of special elements in output (CWE-74) used by the email generation feature of the Command Centre Server could lead to HTML code injection in emails generated by Command Centre. This issue affects: Gallagher Command Centre 9.00 prior to vEL9.00.1774 (MR2), 8.90 prior to vEL8.90.1751 (MR3), 8.80 prior to vEL8.80.1526 (MR4), 8.70 prior to vEL8.70.2526 (MR6), all version of 8.60 and prior.

The weakness was shared 03/05/2024. The advisory is shared for download at security.gallagher.com. This vulnerability was named CVE-2024-21838 since 02/05/2024. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1055.

Upgrading to version EL8.70.2526, EL8.80.1526 (MR4), EL8.90.1751 (MR3) or EL9.00.1774 (MR2) eliminates this vulnerability.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

Gallagher

Name

Command Centre Server

CPE 2.3info

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CPE 2.2info

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CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.2
VulDB Meta Temp Score: 5.2

VulDB Base Score: 3.5
VulDB Temp Score: 3.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.4
NVD Vector: 🔍

CNA Base Score: 6.8
CNA Vector (Gallagher Group Ltd.): 🔍

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: Injection
CWE: CWE-74 / CWE-707 / CWE-20
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
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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Command Centre Server EL8.70.2526/EL8.80.1526 (MR4)/EL8.90.1751 (MR3)/EL9.00.1774 (MR2)

Timelineinfo

02/05/2024 🔍
03/05/2024 +29 days 🔍
03/05/2024 +0 days 🔍
02/10/2025 +342 days 🔍

Sourcesinfo

Advisory: security.gallagher.com
Status: Confirmed

CVE: CVE-2024-21838 (🔍)
GCVE (CVE): GCVE-0-2024-21838
GCVE (VulDB): GCVE-100-255724

Entryinfo

Created: 03/05/2024 08:44
Updated: 02/10/2025 23:40
Changes: 03/05/2024 08:44 (48), 02/10/2025 23:40 (27)
Complete: 🔍
Cache ID: 216::103