CVE-2017-7494
What it is
Samba since version 3.5.0 and before 4.6.4, 4.5.10 and 4.4.14 is vulnerable to remote code execution vulnerability, allowing a malicious client to upload a shared library to a writable share, and then cause the server to load and execute it.
At a glance
- Exploitability
- Can be exploited over the network without logging in. High risk of data exposure, data tampering, service disruption.
- In the wild
- CISA lists this as exploited in real attacks. Treat as urgent.
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- ReservedThe CVE id was reserved by its CNA
- PublishedDisclosed publicly on CVE.org and NVD
- 2023-03-30 Exploited in the wildAdded to CISA's Known Exploited Vulnerabilities list
- 2023-04-20 Remediation deadlineCISA's due date for federal agencies to fix it
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: yes, CISA lists it. This puts it above everything that is not.
- Exploit odds: 99.4% in the next 30 days (EPSS).
- Severity: 9.8 CRITICAL (CVSS).
- Fix: a patch or advisory is linked.
- It meets the bar for Drop everything: critical, and exploited or very likely to be.
Details
- Published
- Last modified
- Added to CISA KEV
- 2023-03-30
- Exploit probability
- 99.4% · EPSS, next 30 days
- Weakness
- CWE-94 · Code injection
- Record status
- Analyzed
Affected
- Samba < 4.4.0
- Samba < 4.4.14
- Samba < 4.5.10
- Samba < 4.6.4
- Debian Linux 8.0
Attack profile CVSS 3.1 · 9.8
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Raw vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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-2017-7494.md and follow it. Check whether this project is affected by CVE-2017-7494. 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://www.samba.org/samba/security/CVE-2017-7494.html
- https://www.samba.org/samba/security/CVE-2017-7494.html
References
- http://www.debian.org/security/2017/dsa-3860
- http://www.securityfocus.com/bid/98636
- http://www.securitytracker.com/id/1038552
- https://access.redhat.com/errata/RHSA-2017:1270
- https://access.redhat.com/errata/RHSA-2017:1271
- https://access.redhat.com/errata/RHSA-2017:1272
- https://access.redhat.com/errata/RHSA-2017:1273
- https://access.redhat.com/errata/RHSA-2017:1390
- https://download.schneider-electric.com/files?p_enDocType=Technical+leaflet&p_File_Name=SEVD-2018-095-01+Security+Notification+Umotion+V1.1.pdf&p_Doc_Ref=SEVD-2018-095-01
- https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbns03755en_us
- https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03759en_us
- https://security.gentoo.org/glsa/201805-07
- https://security.netapp.com/advisory/ntap-20170524-0001/
- https://www.exploit-db.com/exploits/42060/
- https://www.exploit-db.com/exploits/42084/
- https://www.samba.org/samba/security/CVE-2017-7494.html
- http://www.debian.org/security/2017/dsa-3860
- http://www.securityfocus.com/bid/98636
- http://www.securitytracker.com/id/1038552
- https://access.redhat.com/errata/RHSA-2017:1270
- https://access.redhat.com/errata/RHSA-2017:1271
- https://access.redhat.com/errata/RHSA-2017:1272
- https://access.redhat.com/errata/RHSA-2017:1273
- https://access.redhat.com/errata/RHSA-2017:1390
- https://download.schneider-electric.com/files?p_enDocType=Technical+leaflet&p_File_Name=SEVD-2018-095-01+Security+Notification+Umotion+V1.1.pdf&p_Doc_Ref=SEVD-2018-095-01