Multiple vulnerabilities in IBM Observability with Instana

Published: 2024-08-26

Risk	Medium
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2024-37890 CVE-2024-29415
CWE-ID	CWE-476 CWE-918
Exploitation vector	Network
Public exploit	Public exploit code for vulnerability #2 is available.
Vulnerable software Subscribe	IBM Observability with Instana Server applications / Other server solutions
Vendor	IBM Corporation

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) NULL pointer dereference

EUVDB-ID: #VU94329

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2024-37890

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a NULL pointer dereference error when handling requests with the number of headers that exceeds the "server.maxHeadersCount" value. A remote attacker can send a specially crafted request to the application and perform a denial of service (DoS) attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

IBM Observability with Instana: 273 - 276

External links

http://www.ibm.com/support/pages/node/7160600

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Server-Side Request Forgery (SSRF)

EUVDB-ID: #VU95816

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N/E:P/RL:O/RC:C]

CVE-ID: CVE-2024-29415

CWE-ID: CWE-918 - Server-Side Request Forgery (SSRF)

Exploit availability: Yes

Description

The disclosed vulnerability allows a remote attacker to perform SSRF attacks.

The vulnerability exists due to insufficient validation of user-supplied input within the isPublic() function when handling certain IP addresses, such as 127.1, 01200034567, 012.1.2.3, 000:0:0000::01, and ::fFFf:127.0.0.1. A remote attacker can send a specially crafted HTTP request and trick the application to initiate requests to arbitrary systems.

Successful exploitation of this vulnerability may allow a remote attacker gain access to sensitive data, located in the local network or send malicious requests to other servers from the vulnerable system.

Note, the vulnerability exists due to incomplete fix for #VU86944 (CVE-2023-42282).