Security readout for executives and security teams
Plain-English summary
CVE-2015-9058 is an open redirect in Proxmox Mail Gateway before hotfix 4.0-8-097d26a9. An attacker could abuse a trusted gateway URL to send users to an arbitrary website, mainly supporting phishing or credential-theft attempts rather than direct system compromise.
Executive priority
Treat this as a phishing-risk cleanup item. It is not documented as actively exploited in the provided sources, but vulnerable trusted mail-gateway links can make social engineering more convincing.
Technical view
The issue is in handling of the destination parameter, which could allow remote attackers to redirect users to arbitrary websites. The source bundle does not provide CVSS, CWE, detailed affected version ranges beyond pre-hotfix 4.0-8-097d26a9, or implementation details.
Likely exposure
Exposure is likely limited to organizations running Proxmox Mail Gateway versions before hotfix 4.0-8-097d26a9, especially where users can access links involving the affected web interface.
Exploitation context
The sources describe phishing enablement through arbitrary redirects. There is no KEV listing and no source in the bundle states active exploitation, public exploit availability, or observed attacks.
Researcher notes
Evidence is sparse. The bundle identifies the vulnerable behavior, product, and hotfix boundary, but does not include CVSS, CWE, proof-of-concept details, or broad affected CPE metadata. Avoid expanding scope beyond Proxmox Mail Gateway before the named hotfix.
Mitigation direction
- Identify any Proxmox Mail Gateway instances in use.
- Verify whether each instance includes hotfix 4.0-8-097d26a9 or later.
- Review Proxmox and Trustwave guidance before changing production systems.
- Educate users to treat unexpected gateway redirect links cautiously.
Validation and detection
- Confirm deployed Proxmox Mail Gateway version or hotfix level.
- Check whether exposed instances are older than hotfix 4.0-8-097d26a9.
- Review logs for suspicious redirect use involving the destination parameter.
- Confirm vendor guidance has been applied and documented.
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
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CVE-2015-9058 mapping review
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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://www.trustwave.com/Resources/Security-Advisories/Advisories/TWSL2015-024/?fid=7431CVE 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.