CVE-2020-24386
What it is
An issue was discovered in Dovecot before 2.3.13. By using IMAP IDLE, an authenticated attacker can trigger unhibernation via attacker-controlled parameters, leading to access to other users' email messages (and path disclosure).
At a glance
- Exploitability
- Can be exploited over the network with a low-privilege account. High risk of data exposure, data tampering.
- Exploit odds
- 2.8% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 2.8% in the next 30 days (EPSS).
- Severity: 6.8 MEDIUM (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 2.8% · EPSS, next 30 days
- Record status
- Modified
Affected
- Dovecot < 2.3.13
- Debian Linux 10.0
- Fedoraproject Fedora 32
Attack profile CVSS 3.1 · 6.8
- Attack vector
- Network
- Complexity
- High
- Privileges needed
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- None
Raw vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2020-24386.md and follow it. Check whether this project is affected by CVE-2020-24386. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://doc.dovecot.org/configuration_manual/hibernation/
- https://dovecot.org/pipermail/dovecot-news/2021-January/000450.html
- https://dovecot.org/security
- https://doc.dovecot.org/configuration_manual/hibernation/
- https://dovecot.org/pipermail/dovecot-news/2021-January/000450.html
- https://dovecot.org/security
References
- http://packetstormsecurity.com/files/160842/Dovecot-2.3.11.3-Access-Bypass.html
- http://seclists.org/fulldisclosure/2021/Jan/18
- http://www.openwall.com/lists/oss-security/2021/01/04/4
- https://doc.dovecot.org/configuration_manual/hibernation/
- https://dovecot.org/pipermail/dovecot-news/2021-January/000450.html
- https://dovecot.org/security
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GXDKFLOCUP7I4ELGQ2F4P5TGC6NXMYV7/
- https://security.gentoo.org/glsa/202101-01
- https://www.debian.org/security/2021/dsa-4825
- http://packetstormsecurity.com/files/160842/Dovecot-2.3.11.3-Access-Bypass.html
- http://seclists.org/fulldisclosure/2021/Jan/18
- http://www.openwall.com/lists/oss-security/2021/01/04/4
- https://doc.dovecot.org/configuration_manual/hibernation/
- https://dovecot.org/pipermail/dovecot-news/2021-January/000450.html
- https://dovecot.org/security
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GXDKFLOCUP7I4ELGQ2F4P5TGC6NXMYV7/
- https://security.gentoo.org/glsa/202101-01
- https://www.debian.org/security/2021/dsa-4825