CVE-2021-2435Public exploitNetwork attack vector

Account impersonation via unauthenticated session token disclosure

Published Jul 20, 2021 · Updated Sep 25, 2024

Missing access control in Oracle Hyperion Provider Services 11.1.2.4 allows remote attackers to impersonate users via HTTP session tokens. The JAPI ConnectToProvider operation issues a session ID without credentials, and APS ListSessions accepts it to return active users and their tokens. A victim must have an active session; its leaked token grants that victim's cube access, including data queries and modification.

CVSS severity8.1
High
EPSS probability1.41%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing access control in Oracle Hyperion Provider Services 11.1.2.4 allows remote attackers to impersonate users via HTTP session tokens. The JAPI ConnectToProvider operation issues a session ID without credentials, and APS ListSessions accepts it to return active users and their tokens. A victim must have an active session; its leaked token grants that victim's cube access, including data queries and modification.

The record

CVE
CVE-2021-2435
Published
Jul 20, 2021
Updated
Sep 25, 2024
Vendor
Oracle Corporation
Product
Oracle Hyperion Provider Services
Classifications
T1550.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 20, 2021CVE publishedPublication date reported by the CVE source.
  2. Sep 25, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=11.1.2.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Oracle Corporation · Oracle Hyperion Provider Servicesversion=11.1.2.4

Published CVSS scores

8.1Oracle CorporationCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

T1550.004Use Alternate Authentication Material: Web Session Cookie

Public exploit references

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Technologies

Your stack

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Your stack

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