GHSA-2cc5-23r7-vc4v

Source

https://github.com/advisories/GHSA-2cc5-23r7-vc4v

Import Source

https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2021/07/GHSA-2cc5-23r7-vc4v/GHSA-2cc5-23r7-vc4v.json

JSON Data

https://api.osv.dev/v1/vulns/GHSA-2cc5-23r7-vc4v

Aliases

CVE-2021-29480

Published

2021-07-01T17:02:26Z

Modified

2023-11-08T04:05:35.231497Z

Severity

4.4 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N CVSS Calculator

Summary

Ratpack's default client side session signing key is highly predictable

Details

Impact

The client side session module uses the application startup time as the signing key by default. This means that if an attacker can determine this time, and if encryption is not also used (which is recommended, but is not on by default), the session data could be tampered with by someone with the ability to write cookies.

The default configuration is unsuitable for production use as an application restart renders all sessions invalid and is not multi-host compatible, but its use is not actively prevented.

Vulnerability Location

https://github.com/ratpack/ratpack/blob/29434f7ac6fd4b36a4495429b70f4c8163100332/ratpack-session/src/main/java/ratpack/session/clientside/ClientSideSessionConfig.java#L29

Patches

As of Ratpack 1.9.0 the default value is a securely randomly generated value, generated at application startup time.

Workarounds

Supply an alternative signing key, as per the documentation's recommendation.

Database specific

{
    "nvd_published_at": "2021-06-29T19:15:00Z",
    "github_reviewed_at": "2021-06-30T17:49:41Z",
    "severity": "MODERATE",
    "github_reviewed": true,
    "cwe_ids": [
        "CWE-330",
        "CWE-340"
    ]
}

References

Affected packages

Maven / io.ratpack:ratpack-session

Package

Name: io.ratpack:ratpack-session; View open source insights on deps.dev
Purl: pkg:maven/io.ratpack/ratpack-session

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

1.9.0

Affected versions

0.*

0.9.0

0.9.1

0.9.2

0.9.3

0.9.4

0.9.5

0.9.6

0.9.7

0.9.8

0.9.9

0.9.10

0.9.11

0.9.12

0.9.13

0.9.14

0.9.15

0.9.16

0.9.17

0.9.18

0.9.19

1.*

1.0.0-rc-1

1.0.0-rc-2

1.0.0-rc-3

1.0.0

1.1.0

1.1.1

1.2.0-RC-1

1.2.0-rc-2

1.2.0

1.3.0-rc-1

1.3.0-rc-2

1.3.0

1.3.1

1.3.2

1.3.3

1.4.0-rc-1

1.4.0-rc-2

1.4.0-rc-3

1.4.0

1.4.1

1.4.2

1.4.3

1.4.4

1.4.5

1.4.6

1.5.0

1.5.1

1.5.2

1.5.3

1.5.4

1.6.0-rc-1

1.6.0-rc-2

1.6.0-rc-3

1.6.0-rc-4

1.6.0

1.6.1

1.7.0

1.7.1

1.7.2

1.7.3

1.7.4

1.7.5

1.7.6

1.8.0

1.8.1

1.8.2

1.9.0-rc-1

1.9.0-rc-2