Security readout for executives and security teams
Plain-English summary
CVE-2023-51947 is a critical authentication bypass in an actidata actiNAS SL 2U-8 RDX version 3.2.03-SP1 component. A remote attacker may read or change data through nasSvr.php without logging in. The sources do not name a vendor patch or confirm active exploitation.
Executive priority
Prioritize rapid exposure assessment and network restriction. The vulnerability is critical because it may allow remote data access and modification without authentication, but the available sources do not confirm exploitation or provide a patch.
Technical view
The CVE describes improper access control/CWE-306 in nasSvr.php. CVSS 3.1 is 9.1 with network access, low complexity, no privileges, and no user interaction. Impact is high confidentiality and integrity loss, with no availability impact stated. Published affected metadata is incomplete, but the description names actiNAS SL 2U-8 RDX 3.2.03-SP1.
Likely exposure
Exposure is most likely where actidata actiNAS SL 2U-8 RDX 3.2.03-SP1 is deployed, especially if its management interface or nasSvr.php is reachable from untrusted networks. The source bundle provides no CPEs and lists affected vendor/product as n/a, so asset validation is important.
Exploitation context
A public GitHub reference is listed, but the source bundle does not state active exploitation and KEV is false. Treat this as high-risk because the CVSS vector indicates unauthenticated remote access with high data read and modification impact.
Researcher notes
Evidence is clear on vulnerability class, endpoint, named product/version, and CVSS. Evidence is incomplete on authoritative affected CPEs, patch status, and real-world exploitation. Avoid broad product claims beyond actiNAS SL 2U-8 RDX 3.2.03-SP1 unless confirmed by vendor guidance.
Mitigation direction
- Check actidata guidance for fixed firmware or vendor-recommended mitigations.
- Remove public internet access to the NAS management interface.
- Restrict access to trusted admin networks or VPN only.
- Review firewall rules for exposed actiNAS services.
- Increase monitoring for unauthenticated access attempts to nasSvr.php.
Validation and detection
- Inventory actidata actiNAS SL 2U-8 RDX appliances and firmware versions.
- Confirm whether version 3.2.03-SP1 is present.
- Verify nasSvr.php is not reachable from untrusted networks.
- Review web and device logs for unauthenticated nasSvr.php activity.
- Track CVE and vendor pages for patch or advisory updates.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-306: Credential and account abuse lookup
Authentication and credential weaknesses can make valid-account abuse and credential telemetry useful review starting points. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2023-51947 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Critical
- CVSS
- 9.1 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
SSVC decision data
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N3.95.2CISA-ADPVulnerability scoring details
Base CVSS 3.1 score
9.1CriticalVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- https://www.actidata.com/index.php/de-de/actinas-plus-sl-2u-8-rdxCVE reference, mitre
- https://github.com/saw-your-packet/CVEs/blob/main/CVE-2023-51947/README.mdCVE reference, mitre
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.