VulnerabilityAnalyzed
CVE-2017-7494
Samba Remote Code Execution Vulnerability
KEVCRITICAL 9.8EPSS 99.4%
Does this matter?
Known to be exploited in the wild (CISA KEV, CISA remediation deadline 20 April 2023). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.
Description
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.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 99.45% probability · 100th percentile
- CISA KEV
- Listed 30 March 2023 · due 20 April 2023 · used in ransomware campaigns
- Weakness
- CWE-94
- Affected
- samba/samba · debian/debian linux
- Source
- secalert@redhat.com
CISA notes
Apply updates per vendor instructions. https://www.samba.org/samba/security/CVE-2017-7494.html; https://nvd.nist.gov/vuln/detail/CVE-2017-7494
References
- http://www.debian.org/security/2017/dsa-3860Third Party Advisory
- http://www.securityfocus.com/bid/98636Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1038552Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2017:1270Third Party Advisory
- https://access.redhat.com/errata/RHSA-2017:1271Third Party Advisory
- https://access.redhat.com/errata/RHSA-2017:1272Third Party Advisory
- https://access.redhat.com/errata/RHSA-2017:1273Third Party Advisory
- https://access.redhat.com/errata/RHSA-2017:1390Third Party Advisory
- 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-2018-095-01Third Party Advisory
- https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbns03755en_usThird Party Advisory
- https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03759en_usThird Party Advisory
- https://security.gentoo.org/glsa/201805-07Third Party Advisory
- https://security.netapp.com/advisory/ntap-20170524-0001/Third Party Advisory
- https://www.exploit-db.com/exploits/42060/Third Party Advisory, VDB Entry
- https://www.exploit-db.com/exploits/42084/Third Party Advisory, VDB Entry
- https://www.samba.org/samba/security/CVE-2017-7494.htmlPatch, Vendor Advisory
- http://www.debian.org/security/2017/dsa-3860Third Party Advisory
- http://www.securityfocus.com/bid/98636Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1038552Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2017:1270Third Party Advisory
- https://access.redhat.com/errata/RHSA-2017:1271Third Party Advisory
- https://access.redhat.com/errata/RHSA-2017:1272Third Party Advisory
- https://access.redhat.com/errata/RHSA-2017:1273Third Party Advisory
- https://access.redhat.com/errata/RHSA-2017:1390Third Party Advisory
- 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-2018-095-01Third Party Advisory
- https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbns03755en_usThird Party Advisory
- https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03759en_usThird Party Advisory
- https://security.gentoo.org/glsa/201805-07Third Party Advisory
- https://security.netapp.com/advisory/ntap-20170524-0001/Third Party Advisory
- https://www.exploit-db.com/exploits/42060/Third Party Advisory, VDB Entry
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.