CVE-2020-15396
HIGHCVSS 7.8/10EPSS 0.39%
Last modified
CVE-2020-15396 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. In HylaFAX+ through 7.0.2 and HylaFAX Enterprise, the faxsetup utility calls chown on files in user-owned directories. By winning a race, a local attacker could use this to escalate his privileges to root.. EPSS estimates a 0.39% chance of exploitation in the next 30 days.
Description
In HylaFAX+ through 7.0.2 and HylaFAX Enterprise, the faxsetup utility calls chown on files in user-owned directories. By winning a race, a local attacker could use this to escalate his privileges to root.
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions | Update |
|---|---|---|---|
| Hylafax\+ Project | Hylafax\+ | <= 7.0.2 | — |
| Ifax | Hylafax Enterprise | All versions | — |
| Fedoraproject | Fedora | 31 | — |
| Fedoraproject | Fedora | 32 | — |
| Opensuse | Backports Sle | 15.0 | Sp1 |
| Opensuse | Leap | 15.1 | — |
| Opensuse | Leap | 15.2 | — |
References
- http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00039.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00040.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00046.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00054.htmlMailing List, Third Party Advisory
- https://bugzilla.suse.com/show_bug.cgi?id=1173521Exploit, Issue Tracking, Third Party Advisory
- https://security.gentoo.org/glsa/202007-06Third Party Advisory
- https://sourceforge.net/p/hylafax/HylaFAX+/2534/Patch, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00039.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00040.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00046.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00054.htmlMailing List, Third Party Advisory
- https://bugzilla.suse.com/show_bug.cgi?id=1173521Exploit, Issue Tracking, Third Party Advisory
- https://security.gentoo.org/glsa/202007-06Third Party Advisory
- https://sourceforge.net/p/hylafax/HylaFAX+/2534/Patch, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2020-15396?
In HylaFAX+ through 7.0.2 and HylaFAX Enterprise, the faxsetup utility calls chown on files in user-owned directories. By winning a race, a local attacker could use this to escalate his privileges to root.
How severe is CVE-2020-15396?
CVE-2020-15396 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.39% probability of exploitation in the next 30 days.
How do I fix CVE-2020-15396?
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.
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Are you affected by CVE-2020-15396?
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Scan your code nowSource: NVD / NIST