CVE-2022-31019
When using automatic content decoding an attacker can craft a request body that can make the server crash with the following request: `curl -d "array[_0][0][array][_0][0][array]$(for f in $(seq 1100); do echo -n '[_0][0][array]';…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.64%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Vapor is a server-side Swift HTTP web framework. When using automatic content decoding an attacker can craft a request body that can make the server crash with the following request: `curl -d "array[_0][0][array][_0][0][array]$(for f in $(seq 1100); do echo -n '[_0][0][array]'; done)[string][_0]=hello%20world" http://localhost:8080/foo`. The issue is unbounded, attacker controlled stack growth which will at some point lead to a stack overflow and a process crash. This issue has been fixed in version 4.61.1.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 1.64% probability · 75th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-120, CWE-674
- Affected
- vapor/vapor
- Source
- security-advisories@github.com
References
- https://github.com/vapor/vapor/commit/6c63226a4ab82ce53730eb1afb9ca63866fcf033Exploit, Patch, Third Party Advisory
- https://github.com/vapor/vapor/security/advisories/GHSA-qvxg-wjxc-r4ggMitigation, Third Party Advisory
- https://github.com/vapor/vapor/commit/6c63226a4ab82ce53730eb1afb9ca63866fcf033Exploit, Patch, Third Party Advisory
- https://github.com/vapor/vapor/security/advisories/GHSA-qvxg-wjxc-r4ggMitigation, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.