5.9

CVSS Score

3.1

-

CVSS Score

Basic Information

CVE ID

CVE-2022-31033

GHSA ID

GHSA-64qm-hrgp-pgr9

EPSS Score

0.62468%

CWE

CWE-200

Published

6/9/2022

Updated

1/27/2023

KEV Status

Technology

Ruby

Basic Information

CVE ID

GHSA ID

EPSS Score

CWE

Published

Updated

KEV Status

Technology

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CVE-2022-31033

CVE-2022-31033: Mechanize before v2.8.5 vulnerable to authorization header leak on port redirect

Summary

Mechanize (rubygem) < v2.8.5 leaks the Authorization header after a redirect to a different port on the same site.

Mitigation

Upgrade to Mechanize v2.8.5 or later.

Notes

See https://curl.se/docs/CVE-2022-27776.html for a similar vulnerability in curl.

Cookies are shared with a server at a different port on the same site, per https://datatracker.ietf.org/doc/html/rfc6265#section-8.5 which states in part:

Cookies do not provide isolation by port. If a cookie is readable by a service running on one port, the cookie is also readable by a service running on another port of the same server. If a cookie is writable by a service on one port, the cookie is also writable by a service running on another port of the same server. For this reason, servers SHOULD NOT both run mutually distrusting services on different ports of the same host and use cookies to store security- sensitive information.

(GitHub Advisory)

Miggo Vulnerability Database

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CVE-2022-31033

CVE-2022-31033:

5.9

CVSS Score

3.1

-

CVSS Score

Basic Information

CVE ID

CVE-2022-31033

GHSA ID

GHSA-64qm-hrgp-pgr9

EPSS Score

0.62468%

CWE

CWE-200

Published

6/9/2022

Updated

1/27/2023

KEV Status

Technology

Ruby

Basic Information

CVE ID

GHSA ID

EPSS Score

CWE

Published

Updated

KEV Status

Technology

Technical Details

CVSS Vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Package Name	Ecosystem	Vulnerable Versions	First Patched Version
mechanize	rubygems	< 2.8.5	2.8.5

Technical Details

Vulnerability Intelligence
Miggo AI

Root Cause Analysis

The vulnerability stems from improper credential handling during redirects. The commit diff shows critical changes in the response_redirect method where:

Credential headers were split into separate constants (Authorization vs Cookies)
Logic was added to clear Authorization headers specifically when port changes
Test cases were added to verify Authorization header removal on port redirect

This indicates the original response_redirect implementation didn't properly handle port-based redirect credential isolation, specifically for Authorization headers, while correctly preserving cookies per RFC 6265.

Vulnerable functions

Only Mi**o us*rs **n s** t*is s**tion

WAF Protection Rules

WAF Rule

W** rul*s *v*il**l* *or Mi**o *ustom*rs only.W** rul*s *v*il**l* *or Mi**o *ustom*rs only.W** rul*s *v*il**l* *or Mi**o *ustom*rs only.W** rul*s *v*il**l* *or Mi**o *ustom*rs only.W** rul*s *v*il**l* *or Mi**o *ustom*rs only.W** rul*s *v*il**l* *or Mi**o *ustom*rs only.W** rul*s *v*il**l* *or Mi**o *ustom*rs only.W** rul*s *v*il**l* *or Mi**o *ustom*rs only.W** rul*s *v*il**l* *or Mi**o *ustom*rs only.W** rul*s *v*il**l* *or Mi**o *ustom*rs only.

Reasoning

*v*il**l* *or Mi**o *ustom*rs only.*v*il**l* *or Mi**o *ustom*rs only.*v*il**l* *or Mi**o *ustom*rs only.*v*il**l* *or Mi**o *ustom*rs only.*v*il**l* *or Mi**o *ustom*rs only.*v*il**l* *or Mi**o *ustom*rs only.*v*il**l* *or Mi**o *ustom*rs only.*v*il**l* *or Mi**o *ustom*rs only.*v*il**l* *or Mi**o *ustom*rs only.*v*il**l* *or Mi**o *ustom*rs only.

5.9

-

Basic Information

Basic Information

Concerned about an active attack path?

CVE-2022-31033: Mechanize before v2.8.5 vulnerable to authorization header leak on port redirect

CVE-2022-31033:

5.9

-

Basic Information

Basic Information

Technical Details

Technical Details

Vulnerability IntelligenceMiggo AI

Root Cause Analysis

Vulnerable functions

WAF Protection Rules

WAF Rule

Reasoning

Vulnerability IntelligenceMiggo AI

Basic Information

Basic Information

CVE-2022-31033: Mechanize before v2.8.5 vulnerable to authorization header leak on port redirect

Vulnerability IntelligenceMiggo AI

Root Cause Analysis

Vulnerable functions

WAF Protection Rules

WAF Rule

Reasoning

Technical Details

5.9

5.9

Vulnerability Intelligence
Miggo AI

Vulnerability Intelligence
Miggo AI

Vulnerability Intelligence
Miggo AI