QID 982828

QID 982828: Nodejs (npm) Security Update for slashify (GHSA-f4hq-453j-p95f)

The package is an Express middleware that normalises routes by stripping any final slash, redirecting, for example, `bookings/latest/` to `bookings/latest`. However, it does not validate the path it redirects to in any way. In particular, if the path starts with two slashes (or two backslashes, or a slash and a backslash, etc.) it may redirect to a different domain.

Consider the [example from the docs](https://www.npmjs.com/package/slashify#usage). Assume we have run it and started a server on `localhost:3000`, then visiting `localhost:3000///github.com/` redirects you to https://github.com.

## Recommendation

This vulnerability is currently un-patched in the `slashify` package so there is no known safe version of this package. Discontinuing use of `slashify` is recommended.

Successful exploitation of this vulnerability may affect the confidentiality, integrity, and availability of the targeted user.

CVSS V3 rated as High - 6.1 severity.

CVSS V2 rated as Medium - 5.8 severity.

Solution

Customers are advised to refer to GHSA-f4hq-453j-p95f for updates pertaining to this vulnerability.

Vendor References

GHSA-f4hq-453j-p95f - github.com/advisories/GHSA-f4hq-453j-p95f

CVEs related to QID 982828

CVE-2021-3189 |

Software Advisories

Advisory ID	Software	Component	Link
GHSA-f4hq-453j-p95f	slashify		github.com/advisories/GHSA-f4hq-453j-p95f

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