Security readout for executives and security teams
Plain-English summary
IBM Cloud Pak System 2.3 has a Platform System Manager CSV handling flaw that could let an attacker execute commands if malicious CSV content is processed. The supplied record rates it high severity. Evidence does not show known active exploitation.
Executive priority
Treat as high priority if IBM Cloud Pak System 2.3 is present. The business risk is command execution on a management platform, but urgency depends on whether affected CSV workflows are reachable and used.
Technical view
CVE-2019-4521 is improper validation of CSV file contents in IBM Cloud Pak System 2.3 Platform System Manager. The CVSS data indicates local attack vector, high attack complexity, no privileges required, user interaction required, and high confidentiality, integrity, and availability impact.
Likely exposure
Exposure is limited to organizations running IBM Cloud Pak System 2.3, specifically Platform System Manager functionality that processes CSV content. The bundle names no other versions or products.
Exploitation context
The CVE says arbitrary command execution is possible through CSV content validation failure. KEV is false, and the supplied sources do not cite public exploitation or exploit maturity beyond CVSS E:U.
Researcher notes
The source bundle lacks detailed vulnerable endpoints, patch versions, and exploit prerequisites beyond CVSS. Validate against IBM's advisory and X-Force data before assigning exploitability in an environment.
Mitigation direction
- Check IBM advisory node 1126605 for the official remediation path.
- Apply IBM's official fix or upgrade guidance where applicable.
- Limit access to Platform System Manager CSV-processing workflows.
- Avoid processing untrusted CSV files until vendor guidance is applied.
- Monitor IBM X-Force entry 165179 for updated remediation details.
Validation and detection
- Inventory IBM Cloud Pak System deployments and confirm any version 2.3 instances.
- Identify whether Platform System Manager CSV import or processing features are enabled.
- Review IBM advisory node 1126605 against installed build and fix level.
- Check security logs for unusual command execution around CSV-processing activity.
- Confirm compensating access controls restrict Platform System Manager use.
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-2019-4521 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 (3.0)
- Known Exploited
- No
- Published
Vector: CVSS:3.0/UI:R/PR:N/C:H/S:U/AC:H/A:H/AV:L/I:H/RL:O/E:U/RC:C
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/UI:R/PR:N/C:H/S:U/AC:H/A:H/AV:L/I:H/RL:O/E:U/RC:C15.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
7HighVector: CVSS:3.0/UI:R/PR:N/C:H/S:U/AC:H/A:H/AV:L/I:H/RL:O/E:U/RC:C
Source materials
- CVE List V5 sourceCVE List V5
- https://www.ibm.com/support/pages/node/1126605CVE reference · x_refsource_CONFIRM
- ibm-cps-cve20194521-csv-injection (165179)CVE reference · vdb-entry, x_refsource_XF
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.
