SB2022070117 - openEuler update for rubygem-rack

Description

This security bulletin contains information about 3 secuirty vulnerabilities.

1) Input validation error (CVE-ID: CVE-2022-30122)

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

The vulnerability exists due to insufficient validation of user-supplied input when parsing multipart POST requests. A remote attacker can send specially crafted multipart POST requests to the application and perform a denial of service (DoS) attack.

2) OS Command Injection (CVE-ID: CVE-2022-30123)

The vulnerability allows a remote attacker to execute arbitrary shell commands on the target system.

The vulnerability exists due to improper input validation when handling input passed via Rack's Lint middleware and CommonLogger middleware. A remote unauthenticated attacker can pass specially crafted data to the application and execute arbitrary OS commands on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

3) Missing support for integrity check (CVE-ID: CVE-2020-8184)

The vulnerability allows a remote attacker to bypass implemented security restrictions.

The vulnerability exists due to missing integrity check of secure cookies. A remote attacker can alter the cookies in the requests and bypass implemented security restrictions.

Remediation

Install update from vendor's website.

References

• https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2022-1729