Security readout for executives and security teams
Plain-English summary
CVE-2021-33358 describes an authenticated command execution flaw in RaspAP versions 2.3 through 2.6.5. A logged-in attacker could abuse certain wireless configuration fields to make the underlying system run unintended operating system commands. This is most urgent where RaspAP administration is reachable by untrusted users or exposed networks.
Executive priority
Treat this as high priority for any exposed or shared-network RaspAP administrator portal. Although exploitation is authenticated, successful abuse can become system-level command execution on a network device, which may affect wireless availability, trust boundaries, and follow-on access.
Technical view
The CVE states that the /hostapd endpoint mishandles the interface, ssid, and wpa_passphrase POST parameters when values contain shell metacharacters. In affected RaspAP 2.3 to 2.6.5 versions, that can allow authenticated arbitrary OS command execution. The source bundle does not provide CVSS, CWE, structured CPEs, or a named fixed release.
Likely exposure
Exposure is likely limited to RaspAP 2.3 through 2.6.5 deployments where an attacker can authenticate to the web administration interface. Risk rises sharply if the management interface is reachable from shared, guest, wireless, or internet-facing networks.
Exploitation context
The provided sources describe authenticated command execution, but do not show CISA KEV listing or confirmed exploitation in the wild. Public references include project source files and an external gist, but the bundle does not establish active exploitation status.
Researcher notes
Key gaps are the absence of CVSS, CWE, CPEs, and a named fixed version in the provided bundle. Analysis should focus on affected-version confirmation, authentication boundary, administrative exposure, and whether patched code removes unsafe command construction around the three named parameters.
Mitigation direction
- Inventory RaspAP deployments and identify versions 2.3 through 2.6.5.
- Restrict RaspAP administration to trusted management networks only.
- Review RaspAP project guidance for a version identified as fixed.
- Upgrade only after confirming the target release addresses this CVE.
- Remove unnecessary accounts and enforce strong administrator credentials.
- Monitor affected systems for unexpected configuration or account changes.
Validation and detection
- Confirm whether any deployed RaspAP version falls within 2.3 through 2.6.5.
- Verify /hostapd administration requires authentication and is not publicly reachable.
- Review web and system logs for suspicious configuration changes by authenticated users.
- Check deployed source or release notes for safe handling of the named parameters.
- Document compensating network controls if immediate upgrade is not possible.
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.
CVE-2021-33358 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
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
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.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/RaspAP/raspap-webgui/blob/8f0ae3b36aa1020d21477e66010c6b2146e7c222/app/img/wifi-qr-code.phpCVE reference · x_refsource_MISC
- https://github.com/RaspAP/raspap-webgui/blob/b02660d5ff8d9faa5d3ef49778b23e832851e0f4/includes/hostapd.phpCVE reference · x_refsource_MISC
- https://gist.github.com/omriinbar/52c000c02a6992c6ce68d531195f69cfCVE reference · x_refsource_MISC
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.