Security readout for executives and security teams
Plain-English summary
This vulnerability lets an unauthenticated remote attacker read files outside the intended web directory on affected ProSyst/Bosch gateway software. The known impact is confidentiality loss, not file modification or service outage. It is high priority where these HTTP interfaces are reachable from untrusted networks.
Executive priority
Treat as high priority for exposed gateway environments because it can disclose sensitive local files without authentication. It is less urgent for isolated systems, but asset owners should still confirm versions and apply vendor guidance.
Technical view
CVE-2019-11603 is an HTTP path traversal issue affecting versions earlier than ProSyst mBS SDK 8.2.6 and Bosch IoT Gateway Software 9.0.2. CVSS 3.0 is 7.5, with network access, low complexity, no privileges, no user interaction, and high confidentiality impact.
Likely exposure
Exposure is most likely in organizations using ProSyst mBS SDK or Bosch IoT Gateway Software with an HTTP service reachable from external, partner, or broad internal networks. The provided data does not include CPEs or a detailed deployment matrix.
Exploitation context
The source bundle does not show CISA KEV listing or cited evidence of active exploitation. The vulnerability characteristics are still concerning because exploitation requires no authentication or user interaction if the vulnerable HTTP service is reachable.
Researcher notes
Evidence supports a path traversal read primitive through HTTP, with confidentiality-only CVSS impact. No CWE, CPE, exploit status, or detailed fixed-build notes were included beyond the version thresholds and Bosch advisory reference.
Mitigation direction
- Upgrade affected deployments to ProSyst mBS SDK 8.2.6 or later.
- Upgrade Bosch IoT Gateway Software to 9.0.2 or later.
- Restrict HTTP interface access to trusted management networks.
- Review the Bosch advisory for product-specific guidance.
- Prioritize internet-facing or partner-facing gateway deployments first.
Validation and detection
- Inventory ProSyst mBS SDK and Bosch IoT Gateway Software versions.
- Identify exposed HTTP services associated with affected products.
- Confirm vulnerable versions are upgraded or isolated.
- Review access logs for suspicious file-read traversal patterns.
- Document compensating controls where upgrades are delayed.
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.
File access behavior lookup
The CVE wording references file access or upload behavior, so file telemetry and web shell review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2019-11603 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
- High
- CVSS
- 7.5 (3.0)
- Known Exploited
- No
- Published
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/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.
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:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N3.93.6Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
7.5HighVector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://psirt.bosch.com/Advisory/BOSCH-SA-562575.htmlCVE reference · x_refsource_CONFIRM
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.