Security readout for executives and security teams
Plain-English summary
CVE-2021-2153 affects Oracle Internet Expenses in Oracle E-Business Suite Mobile Expenses. An unauthenticated attacker with HTTP network access could, after user interaction, alter some accessible expense data. The main business risk is unauthorized data modification, not data theft or outage.
Executive priority
Schedule remediation through normal vulnerability management, with higher priority for externally reachable or financially sensitive expense systems. The issue has moderate severity because it can alter data, but sources indicate required user interaction and no confidentiality or availability impact.
Technical view
Affected Oracle Internet Expenses versions are 12.2.3 through 12.2.10. CVSS 3.1 is 4.3 with vector AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N. The vulnerability is remotely reachable over HTTP, needs no attacker privileges, requires human interaction, and has low integrity impact only.
Likely exposure
Exposure is limited to organizations running Oracle E-Business Suite Internet Expenses 12.2.3-12.2.10, especially where Mobile Expenses is reachable over HTTP. Systems outside those versions or not using this component are not indicated as affected by the provided sources.
Exploitation context
The source bundle does not show CISA KEV listing or cited active exploitation. Exploitation requires HTTP network access and interaction by someone other than the attacker, reducing urgency compared with unaided remote compromise but still creating expense-data integrity risk.
Researcher notes
No CWE, root cause, endpoint details, exploit method, or patch identifiers are included in the supplied bundle. Research should stay advisory-driven: confirm product version, component use, HTTP exposure, and patch state without assuming broader E-Business Suite impact.
Mitigation direction
- Review Oracle April 2021 Critical Patch Update guidance for CVE-2021-2153.
- Apply Oracle-provided fixes or later supported updates for affected E-Business Suite versions.
- Limit HTTP exposure to trusted networks where operationally feasible.
- Prioritize systems handling sensitive or financially material expense workflows.
- Monitor Oracle advisories for any updated remediation guidance.
Validation and detection
- Inventory Oracle E-Business Suite deployments using Internet Expenses Mobile Expenses.
- Confirm whether versions 12.2.3 through 12.2.10 are present.
- Check patch status against Oracle April 2021 CPU guidance.
- Verify whether Mobile Expenses is reachable over HTTP from untrusted networks.
- Review expense-data audit logs for unexpected update, insert, or delete activity.
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-2021-2153 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
- Medium
- CVSS
- 4.3 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/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:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N2.81.4Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
4.3MediumVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://www.oracle.com/security-alerts/cpuapr2021.htmlCVE 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.