Apache HTTP Server up to 2.4.59 Backend Application information disclosure

Summaryinfo

A vulnerability, which was classified as problematic, has been found in Apache HTTP Server up to 2.4.59. This vulnerability affects unknown code of the component Backend Application Handler. Performing a manipulation results in information disclosure. This vulnerability is known as CVE-2024-38476. Remote exploitation of the attack is possible. No exploit is available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Apache HTTP Server up to 2.4.59. This affects an unknown functionality of the component Backend Application Handler. The manipulation with an unknown input leads to a information disclosure vulnerability. CWE is classifying the issue as CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. This is going to have an impact on confidentiality. The summary by CVE is:

Vulnerability in core of Apache HTTP Server 2.4.59 and earlier are vulnerably to information disclosure, SSRF or local script execution via backend applications whose response headers are malicious or exploitable. Users are recommended to upgrade to version 2.4.60, which fixes this issue.

It is possible to read the advisory at lists.apache.org. This vulnerability is uniquely identified as CVE-2024-38476 since 06/17/2024. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 01/04/2026). The attack technique deployed by this issue is T1592 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 209255 (Oracle Linux 7 : httpd (ELSA-2024-7101)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 2.4.60 eliminates this vulnerability. The upgrade is hosted for download at httpd.apache.org.

The vulnerability is also documented in the databases at Tenable (209255) and CERT Bund (WID-SEC-2024-1504). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Affected

• Debian Linux
• IBM Tivoli Monitoring
• Amazon Linux 2
• Red Hat Enterprise Linux
• Fedora Linux
• Ubuntu Linux
• F5 BIG-IP
• SUSE Linux
• IBM HTTP Server
• Oracle Linux
• Xerox FreeFlow Print Server
• Gentoo Linux
• Hitachi Ops Center
• IBM Business Automation Workflow
• Hitachi Configuration Manager
• RESF Rocky Linux
• IBM Rational ClearQuest
• Dell PowerScale OneFS
• Apache HTTP Server
• Dell NetWorker
• IBM Rational Build Forge
• HCL Commerce
• SonicWall SMA
• Dell ECS
• HPE HP-UX
• Red Hat JBoss Core Services
• Dell PowerProtect Data Domain

Productinfo

Type

• Web Server

Vendor

• Apache

Name

• HTTP Server

Version

• 2.4.0
• 2.4.1
• 2.4.2
• 2.4.3
• 2.4.4
• 2.4.5
• 2.4.6
• 2.4.7
• 2.4.8
• 2.4.9
• 2.4.10
• 2.4.11
• 2.4.12
• 2.4.13
• 2.4.14
• 2.4.15
• 2.4.16
• 2.4.17
• 2.4.18
• 2.4.19
• 2.4.20
• 2.4.21
• 2.4.22
• 2.4.23
• 2.4.24
• 2.4.25
• 2.4.26
• 2.4.27
• 2.4.28
• 2.4.29
• 2.4.30
• 2.4.31
• 2.4.32
• 2.4.33
• 2.4.34
• 2.4.35
• 2.4.36
• 2.4.37
• 2.4.38
• 2.4.39
• 2.4.40
• 2.4.41
• 2.4.42
• 2.4.43
• 2.4.44
• 2.4.45
• 2.4.46
• 2.4.47
• 2.4.48
• 2.4.49
• 2.4.50
• 2.4.51
• 2.4.52
• 2.4.53
• 2.4.54
• 2.4.55
• 2.4.56
• 2.4.57
• 2.4.58
• 2.4.59

License

• open-source

Website

• Vendor: https://www.apache.org/

CPE 2.3info

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CPE 2.2info

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CVSSv4info

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Exploitinginfo

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Entryinfo

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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