CVE-2021-28966
HIGHCVSS 7.5/10EPSS 58.04%
Last modified
CVE-2021-28966 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. In Ruby through 3.0 on Windows, a remote attacker can submit a crafted path when a Web application handles a parameter with TmpDir.. EPSS estimates a 58.04% chance of exploitation in the next 30 days.
Description
In Ruby through 3.0 on Windows, a remote attacker can submit a crafted path when a Web application handles a parameter with TmpDir.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Ruby-Lang | Ruby | < 2.7.3 |
| Ruby-Lang | Ruby | >= 3.0.0, < 3.0.1 |
References
- https://hackerone.com/reports/1131465Exploit, Issue Tracking, Patch, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20210902-0004/Third Party Advisory
- https://hackerone.com/reports/1131465Exploit, Issue Tracking, Patch, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20210902-0004/Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-28966?
In Ruby through 3.0 on Windows, a remote attacker can submit a crafted path when a Web application handles a parameter with TmpDir.
How severe is CVE-2021-28966?
CVE-2021-28966 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 58.04% probability of exploitation in the next 30 days.
How do I fix CVE-2021-28966?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2021
- CVE-2021-28960Zoho ManageEngine Desktop Central before build 10.0.683 allo…9.8
- CVE-2021-28961applications/luci-app-ddns/luasrc/model/cbi/ddns/detail.lua …8.8
- CVE-2021-28962Stormshield Network Security (SNS) before 4.2.2 allows a rea…7.2
- CVE-2021-28963Shibboleth Service Provider before 3.2.1 allows content inje…5.3
- CVE-2021-28964A race condition was discovered in get_old_root in fs/btrfs/…4.7
- CVE-2021-28965The REXML gem before 3.2.5 in Ruby before 2.6.7, 2.7.x befor…7.5
- CVE-2021-28967The unofficial MATLAB extension before 2.0.1 for Visual Stud…9.8
- CVE-2021-28968An issue was discovered in PunBB before 1.4.6. An XSS vulner…5.4
- CVE-2021-28969eMPS 9.0.1.923211 on FireEye EX 3500 devices allows remote a…6.5
- CVE-2021-28970eMPS 9.0.1.923211 on the Central Management of FireEye EX 35…6.5
- CVE-2021-28971In intel_pmu_drain_pebs_nhm in arch/x86/events/intel/ds.c in…5.5
- CVE-2021-28972In drivers/pci/hotplug/rpadlpar_sysfs.c in the Linux kernel …6.7
Are you affected by CVE-2021-28966?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST