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CVE-2022-38580 — Vulnerability in github.com/zalando/skipper — CVE...

CRITICAL

Skipper vulnerable to SSRF via X-Skipper-Proxy

Published October 25, 2022Updated November 8, 2023Source: osv

Summary

### Impact Skipper prior to version v0.13.236 is vulnerable to server-side request forgery (SSRF). An attacker can exploit a vulnerable version of proxy to access the internal metadata server or other unauthenticated URLs by adding an specific header (X-Skipper-Proxy) to the http request. ### Patches The problem was patched in version https://github.com/zalando/skipper/releases/tag/v0.13.237. Users need to upgrade to skipper `>=v0.13.237`. ### Workarounds Use `dropRequestHeader("X-Skipper-Proxy")` filter ### References https://github.com/zalando/skipper/releases/tag/v0.13.237 ### For more information If you have any questions or comments about this advisory: * Open an issue in https://github.com/zalando/skipper/issues/new/choose * Chat with us in slack: https://app.slack.com/client/T029RQSE6/C82Q5JNH5

Advisory Timeline

  • First published October 25, 2022 (1448 days ago).
  • Last revised November 8, 2023 — 378 days after initial publication.

Remediation

Upgrade to the fixed version using your package manager.

Go
Update github.com/zalando/skipper to 0.13.237 or later
go get github.com/zalando/skipper@v0.13.237

After upgrading, run your dependency scanner again to confirm the vulnerability is resolved.

Affected Packages (1)

Affects 1 ecosystem: go (1).

PackageEcosystemAffectedFixed In
github.com/zalando/skipper
go
All versions0.13.237

Vulnerability Classification

Common Weakness Enumeration (CWE) identifiers for this vulnerability type.

  • CWE-918
    Server-Side Request Forgery (SSRF)MITRE

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 9.8 score means for each attack dimension.

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

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

References

Frequently Asked Questions

What is CVE-2022-38580?
Skipper vulnerable to SSRF via X-Skipper-Proxy This vulnerability has been assigned a severity rating of CRITICAL (CVSS score: 9.8/10).
How do I check if my project is affected by CVE-2022-38580?
CVE-2022-38580 affects github.com/zalando/skipper. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2022-38580 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score
9.8

Exploitation is straightforward and causes maximum impact. Patch immediately.

Also Known As

GHSA-f2rj-m42r-6jm2
GO-2022-1086

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