An issue was discovered in Illumos in Nexenta NexentaStor 4.0.5 and 5.1.2, and other…
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA.
Summary
An issue was discovered in Illumos in Nexenta NexentaStor 4.0.5 and 5.1.2, and other products. The SMB server allows an attacker to have unintended access, e.g., an attacker with WRITE_XATTR can change permissions. This occurs because of a combination of three factors: ZFS extended attributes are used to implement NT named streams, the SMB protocol requires implementations to have open handle semantics similar to those of NTFS, and the SMB server passes along certain attribute requests to the underlying object (i.e., they are not considered to be requests that pertain to the named stream).
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:illumos:illumos:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | illumos |
| cpe:2.3:a:nexenta:nexentastor:4.0.5:*:*:*:*:*:*:* | 4.0.5 | Running on | — |
| cpe:2.3:a:nexenta:nexentastor:5.1.2:*:*:*:*:*:*:* | 5.1.2 | Running on | — |
| cpe:2.3:o:oracle:solaris:11:*:*:*:*:*:*:* | 11 | Vulnerable | Oracle |
- cpe:2.3:a:illumos:illumos:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·illumos
- cpe:2.3:a:nexenta:nexentastor:4.0.5:*:*:*:*:*:*:* Versions 4.0.5 Running on ·—
- cpe:2.3:a:nexenta:nexentastor:5.1.2:*:*:*:*:*:*:* Versions 5.1.2 Running on ·—
- cpe:2.3:o:oracle:solaris:11:*:*:*:*:*:*:* Versions 11 Vulnerable ·Oracle
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2019-9579
- 2026-10-03 Alias added: GHSA-79p4-hp34-c4rw
References
Sources
- CVE-2019-9579 · CVE Program
- CVE-2019-9579 · NVD
- FIRST EPSS
- GHSA-79p4-hp34-c4rw · GitHub Advisory Database · CC BY 4.0
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