Information disclosure in BIG-IP Next SPK/CNF libcurl

1) Information disclosure

EUVDB-ID: #VU83900

Risk: Low

CVSSv4.0: 1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2023-46218

CWE-ID: CWE-200 - Information exposure

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to an error in curl that allows a malicious HTTP server to set "super cookies" that are then passed back to more origins than what is otherwise allowed or possible. A remote attacker can force curl to send such cookie to different and unrelated sites and domains.

Mitigation

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

BIG-IP Next SPK: 1.7.0 - 1.9.1

BIG-IP Next CNF: 1.1.0 - 1.2.1

CPE2.3

• cpe:2.3:o:f5_networks:big-ip_next_spk:1.7.0:*:*:*:*:*:*:*
• cpe:2.3:o:f5_networks:big-ip_next_spk:1.7.1:*:*:*:*:*:*:*
• cpe:2.3:o:f5_networks:big-ip_next_spk:1.8.0:*:*:*:*:*:*:*
• cpe:2.3:o:f5_networks:big-ip_next_cnf:1.1.0:*:*:*:*:*:*:*
• cpe:2.3:o:f5_networks:big-ip_next_cnf:1.1.1:*:*:*:*:*:*:*
• cpe:2.3:o:f5_networks:big-ip_next_cnf:1.2.0:*:*:*:*:*:*:*

External links

https://my.f5.com/manage/s/article/K000138650

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.