ghsa-3cjh-p6pw-jhv9
Vulnerability from github
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, :_, :_}, [], [:"$_"]}]), fn {_, key, {_value, expire}} ->
ttl = expire - :os.system_time(:millisecond)
if ttl < 0, do: :mnesia.delete({Pow.Store.Backend.MnesiaCache, key})
end)
end)
References
https://github.com/pow-auth/pow/commit/15dc525be03c466daa5d2119ca7acdec7b24ed17 https://github.com/pow-auth/pow/issues/713 https://github.com/pow-auth/pow/pull/714
{
"affected": [
{
"package": {
"ecosystem": "Hex",
"name": "pow"
},
"ranges": [
{
"events": [
{
"introduced": "1.0.14"
},
{
"fixed": "1.0.34"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2023-42446"
],
"database_specific": {
"cwe_ids": [
"CWE-298",
"CWE-672"
],
"github_reviewed": true,
"github_reviewed_at": "2023-09-19T17:00:08Z",
"nvd_published_at": "2023-09-18T22:15:47Z",
"severity": "MODERATE"
},
"details": "Use of `Pow.Store.Backend.MnesiaCache` is susceptible to session hijacking as expired keys are not being invalidated correctly on startup. A cache key may become expired when all `Pow.Store.Backend.MnesiaCache` instances have been shut down for a period that is longer than the keys\u0027 remaining TTL and the expired key won\u0027t be invalidated on startups.\n\n### Workarounds\n\nThe expired keys, including all expired sessions, can be manually invalidated by running:\n\n```elixir\n:mnesia.sync_transaction(fn -\u003e\n Enum.each(:mnesia.dirty_select(Pow.Store.Backend.MnesiaCache, [{{Pow.Store.Backend.MnesiaCache, :_, :_}, [], [:\"$_\"]}]), fn {_, key, {_value, expire}} -\u003e\n ttl = expire - :os.system_time(:millisecond)\n if ttl \u003c 0, do: :mnesia.delete({Pow.Store.Backend.MnesiaCache, key})\n end)\nend)\n```\n\n### References\nhttps://github.com/pow-auth/pow/commit/15dc525be03c466daa5d2119ca7acdec7b24ed17\nhttps://github.com/pow-auth/pow/issues/713\nhttps://github.com/pow-auth/pow/pull/714\n",
"id": "GHSA-3cjh-p6pw-jhv9",
"modified": "2023-09-19T17:00:08Z",
"published": "2023-09-19T17:00:08Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/pow-auth/pow/security/advisories/GHSA-3cjh-p6pw-jhv9"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-42446"
},
{
"type": "WEB",
"url": "https://github.com/pow-auth/pow/issues/713"
},
{
"type": "WEB",
"url": "https://github.com/pow-auth/pow/pull/714"
},
{
"type": "WEB",
"url": "https://github.com/pow-auth/pow/commit/15dc525be03c466daa5d2119ca7acdec7b24ed17"
},
{
"type": "PACKAGE",
"url": "https://github.com/pow-auth/pow"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N",
"type": "CVSS_V3"
}
],
"summary": "Pow Mnesia cache doesn\u0027t invalidate all expired keys on startup"
}
Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.