Spoofing attack in gRPC client

1) Input validation error

EUVDB-ID: #VU96644

Risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2024-7246

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform spoofing attack.

The vulnerability exists due to insufficient validation of HTTP/2 headers. A remote attacker can send a series of HTTP/2 requests to the application and gain access to sensitive information or perform spoofing attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

gRPC: 1.58.0 - 1.65.3

CPE2.3

• cpe:2.3:a:grpc:grpc:1.58.2:*:*:*:*:*:*:*
• cpe:2.3:a:grpc:grpc:1.59.4:*:*:*:*:*:*:*
• cpe:2.3:a:grpc:grpc:1.65.3:*:*:*:*:*:*:*

External links

https://github.com/grpc/grpc/issues/36245

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.