Vulnerability in Golang Go
CVE-2021-23772
This affects all versions of package github.com/kataras/iris; all versions of package github.com/kataras/iris/v12. The unsafe handling of file names during upload using UploadFormFiles method may enable attackers to write to arbitrary locations outside the designated target folder.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.018 (77.9th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 78th percentile — 77.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.018 · newest: 0.018 · change: 0.000
Affected products
- Golang Go
- Iris-Go Iris — versions 12.2.0
- Github.com/kataras/iris — versions 0
- Github.com/kataras/iris/v12 — versions 0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- snyk.io/vuln/SNYK-GOLANG-GITHUBCOMKATARASIRIS-2325169 (Exploit, Patch, Third Party Advisory)
- snyk.io/vuln/SNYK-GOLANG-GITHUBCOMKATARASIRISV12-2325170 (Exploit, Patch, Third Party Advisory)
- github.com/kataras/iris/commit/e213dba0d32ff66653e0ef124bc5088817264b08 (Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-23772?
- CVE-2021-23772 is a high-severity vulnerability in Golang Go, classified under Improper Link Resolution Before File Access. CVSS score: 7.5/10. Published 2021-12-24.
- How severe is CVE-2021-23772?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2021-23772 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.