CVE-2023-42446 – pow

Package

Manager: erlang
Name: pow
Vulnerable Version: >=1.0.14 <1.0.34

Severity

Level: Medium

CVSS v3.1: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N

EPSS: 0.00134 pctl0.33933

Details

Pow Mnesia cache doesn't invalidate all expired keys on startup Use of `Pow.Store.Backend.MnesiaCache` is susceptible to session hijacking as expired keys are not being invalidated correctly on startup. A cache key may become expired when all `Pow.Store.Backend.MnesiaCache` instances have been shut down for a period that is longer than the keys' remaining TTL and the expired key won't be invalidated on startups. ### Workarounds The expired keys, including all expired sessions, can be manually invalidated by running: ```elixir :mnesia.sync_transaction(fn -> Enum.each(:mnesia.dirty_select(Pow.Store.Backend.MnesiaCache, [{{Pow.Store.Backend.MnesiaCache, :_, :_}, [], [:"$_"]}]), fn {_, key, {_value, expire}} -> ttl = expire - :os.system_time(:millisecond) if ttl < 0, do: :mnesia.delete({Pow.Store.Backend.MnesiaCache, key}) end) end) ``` ### References https://github.com/pow-auth/pow/commit/15dc525be03c466daa5d2119ca7acdec7b24ed17 https://github.com/pow-auth/pow/issues/713 https://github.com/pow-auth/pow/pull/714

Metadata

Created: 2023-09-19T17:00:08Z
Modified: 2023-09-19T17:00:08Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2023/09/GHSA-3cjh-p6pw-jhv9/GHSA-3cjh-p6pw-jhv9.json
CWE IDs: ["CWE-298", "CWE-672"]
Alternative ID: GHSA-3cjh-p6pw-jhv9
Finding: F067
Auto approve: 1