CriticalCVE-2022-21587

    Oracle E-Business Suite Unspecified Vulnerability (CVE-2022-21587)

    Published In CISA KEV since Sources: pwn.watch, CVE.org

    What is affected, what to do

    The vulnerability CVE-2022-21587 allows an unauthenticated attacker to perform remote code execution (RCE) on Oracle Web Applications Desktop Integrator via HTTP, leading to a full system takeover. It is actively exploited in ransomware campaigns since 2023 and is listed in the CISA KEV catalog. Affected versions are 12.2.3 to 12.2.11. Immediate patching to the latest version is critical to mitigate this vulnerability.

    The vulnerability is being actively exploited; treat it as a priority. CISA lists it as used in ransomware campaigns. The available sources name no fixed version. Check the vendor guidance in the references below. Immediate actions, mitigation and detection rules are in the runbook below.

    Affected
    • Oracle Web Applications Desktop Integrator eq 12.2.3-12.2.11..12.2.3-12.2.11

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    Metrics

    9.8

    Priority

    XIEM Effective CVSS: highest available CVSS rating from NVD and vendor data.

    Source: NVD, CVSS v3

    9.8

    CVSS v3

    Severity Critical on the scale from 0 to 10.

    Source: pwn.watch, CVE.org

    98.3 %

    EPSS score

    High — model estimates ≥ 50% chance of real-world exploitation within 30 days.

    Source: FIRST EPSS, percentile 99.92

    Show all metrics
    Severity
    Critical
    Priority (0–325)

    The priority score is a consolidated metric that condenses several individual signals into a single, action-guiding ranking: technical severity (CVSS), exploitation likelihood (EPSS), known-exploited status (KEV) and the context of the affected asset. The aim is to answer the only truly important question in vulnerability management: what first?

    Read in glossary
    255.45 Methodology
    Exploit maturity

    An exploit is code or a technique that specifically uses a concrete vulnerability to force unintended behaviour — such as executing code or escalating privileges. It is the tool that turns a theoretical flaw into a practical attack.

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    actively exploited
    XIEM Effective CVSS

    XIEM® is the tiered managed-security operating model from NEOSEC and a registered trademark of NEOSEC GmbH. It extends classic SIEM — the central collection, normalisation and correlation of security-relevant events — with endpoint forensics, network visibility and deception technology, and consolidates them into three building tiers: Sentry, Orchestrate and Command.

    Read in glossary
    9.8 Methodology
    CVSS v3

    CVSS is the globally established, open standard for assessing the technical severity of a vulnerability on a scale from 0 to 10. It describes how easily a flaw can be exploited and what damage it can cause — but not how likely its actual exploitation is. CVSS and the complementary EPSS deliberately answer different questions.

    Read in glossary
    9.8
    EPSS score

    The EPSS score is the absolute model output for an individual vulnerability: the estimated probability of real-world exploitation within the next 30 days, expressed as a value between 0 and 1 (i.e. 0 % to 100 %). A score of 0.42 means „the model estimates a 42 % chance of real-world exploitation within 30 days“.

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    98.3 %
    High — model estimates ≥ 50% chance of real-world exploitation within 30 days.
    EPSS percentile

    The EPSS percentile is the relative position of a vulnerability within all EPSS-scored CVEs, expressed as a value between 0 and 1. A percentile of 0.90 means „this CVE has a higher EPSS score than 90 % of all other scored CVEs“. Unlike the EPSS score, it is not a probability — but a positioning within a ranking.

    Read in glossary
    99.92
    Critical — this CVE ranks in the top fifth of all CVEs scored today (rank ≥ 80%).
    KEV status

    The KEV catalogue is a list maintained by the US authority CISA of vulnerabilities for which active exploitation in the wild has been confirmed. It answers not the question „how severe?“ but „is it already being attacked?“ — thereby sharply prioritising patching.

    Read in glossary
    Actively exploited
    Published
    In CISA KEV since

    The KEV catalogue is a list maintained by the US authority CISA of vulnerabilities for which active exploitation in the wild has been confirmed. It answers not the question „how severe?“ but „is it already being attacked?“ — thereby sharply prioritising patching.

    Read in glossary

    Response and mitigation

    Why act now?

    Prioritisation rationale

    This CVE is on KEV because it is exploitable unauthenticated over HTTP, grants full takeover of WebADI, and from there typically yields code execution on the application tier and a pivot into the Oracle database — meaning finance, HR and supply-chain data are directly in scope. CISA's ransomware-use flag plus a very high exploitation likelihood indicate ongoing mass scanning and opportunistic abuse; any internet-reachable EBS instance should be treated as compromised until a patch record and a compromise assessment prove otherwise. For NIS2-regulated organisations running EBS as their ERP backbone, this CVE belongs in the top remediation tier with an SLA measured in hours, not days; internal, well-segmented instances can be handled within a prioritised patch window of a few days.

    1. Runbook step 1

      Immediate response (0-24 h)

      • Deploy the Oracle Critical Patch Update October 2022 (or later) across all E-Business Suite 12.2.3 to 12.2.11 instances; the Web Applications Desktop Integrator (WebADI) fix ships inside that CPU. Record patch state per instance in the CMDB.
      • Until patched, block the WebADI endpoints (typically /OA_HTML/BneApplicationService, /OA_HTML/BneUploaderService and related Bne* servlets) at the reverse proxy, load balancer or Oracle HTTP Server, or restrict them to internal source IPs.
      • Any EBS environment whose login page is reachable from the internet must be moved behind VPN, zero-trust proxy or a source-IP allowlist immediately. Internet exposure is the main driver for exploitation of this CVE.
      • Preserve forensic evidence: capture Oracle HTTP Server access logs, $APPL_TOP and application-tier filesystems (especially /tmp, $COMMON_TOP/html, $OA_HTML) and look for JSP or shell artefacts dropped since October 2022.
      • Rotate credentials for the APPS account and every technical account carrying WebADI responsibilities if the system was exposed pre-patch. Invalidate active session cookies as well.

    2. Runbook step 2

      Mitigation layers

      • Network segmentation: isolate the EBS application tier in its own VLAN with deny-all egress except to DB tier, patch repository and named SMTP/LDAP destinations. No outbound HTTP(S) from the app tier to the internet — this blocks reverse shells and second-stage tool download.
      • WAF rule in front of Oracle HTTP Server: only permit POSTs to BneUploaderService, BneViewerService and BneDownloadService for authenticated sessions; drop multipart/form-data uploads lacking a valid ICX_SESSION_COOKIE. Cap request size at a plausible maximum.
      • Reverse-proxy hardening: maintain an explicit URL allowlist; expose OA_HTML/Bne* paths only to defined user groups. Disable directory browsing on /OA_HTML/ and switch off directory listings.
      • Endpoint hardening on application-tier hosts: keep the applmgr user tightly scoped in sudoers, audit write permissions on $OA_HTML subdirectories, enable FIM (AIDE, Tripwire, Wazuh FIM) on $COMMON_TOP/html and $APPL_TOP.
      • IAM principle: assign WebADI responsibilities (Desktop Integration, Web ADI) only to business users who actively require them. Remove service accounts without a documented business purpose.
      • Database side: enable auditing on the APPS schema, specifically on FND_USER, FND_RESPONSIBILITY and BNE_* tables (AUDIT INSERT, UPDATE, DELETE).

    3. Runbook step 3

      Detection rules

      • Oracle HTTP Server access logs: POST /OA_HTML/Bne*Service* returning 200 without a preceding successful authentication from the same source IP. Sigma shape: selection: cs-uri-stem|contains: '/OA_HTML/Bne' and cs-method: 'POST' and cs-referer: null.
      • Filesystem telemetry (auditd / Wazuh): new .jsp, .class or .war files under $OA_HTML or $COMMON_TOP/html written by applmgr outside scheduled deployment windows. auditd rule: -w /u01/app/applmgr/apps/apps_st/comn/html -p wa -k ebs_webshell.
      • Process telemetry: java processes under EBS spawning children such as sh, bash, curl, wget, nc, python. Sysmon EID 1 or EDR process-ancestry: parent_image: *java* and image: *(sh|bash|curl|wget|nc)*.
      • Network telemetry (Zeek/Suricata): outbound connections from the application tier to non-allowlisted destinations, especially HTTP/HTTPS to paste sites or raw-GitHub. Suricata rule idea: alert on TCP egress from EBS VLAN to non-RFC1918 outside patch/Oracle hosts.
      • SIEM correlation: KQL example (Sentinel) — W3CIISLog | where csUriStem has "Bne" and csMethod == "POST" | summarize count() by cIP, bin(TimeGenerated, 5m) | where count_ > 10 catches scanning and exploit bursts.

    Detection rules

    No NEOSEC detection rule is available for this vulnerability yet.

    Classification under NIS2 and CRA

    Rule-based classification from exploitation status and severity. It does not replace a case-by-case assessment.

    NIS2

    NIS2 is EU Directive (EU) 2022/2555 to raise the level of cybersecurity across the Union. It substantially broadens obligations compared with the first NIS directive: more sectors, mandatory risk management, staged reporting duties and personal accountability of senior management.

    Read in glossary
    Actively exploited: treat the vulnerability as a priority in vulnerability handling under Art. 21(2)(e) NIS2. If it is exploited in your environment, check the reporting obligation under Art. 23 (early warning within 24 hours).
    CRA

    The CRA is EU Regulation (EU) 2024/2847 setting horizontal cybersecurity requirements for „products with digital elements“ — from industrial controllers and software to connected consumer devices. For the first time manufacturers must ensure security across the entire product lifecycle, handle vulnerabilities and provide security updates.

    Read in glossary
    Since 11.09.2026, manufacturers of affected products with digital elements must report actively exploited vulnerabilities under Art. 14 CRA, with an early warning within 24 hours via ENISA's single reporting platform.
    ISO/IEC 27001

    ISO/IEC 27001 is the internationally leading standard for an information security management system (ISMS). It describes a risk-based, process-oriented framework to systematically plan, implement, review and improve information security.

    Read in glossary
    Control A.8.8, management of technical vulnerabilities: assess relevance to your systems, plan remediation and keep evidence.

    Description

    Vulnerability in the Oracle Web Applications Desktop Integrator product of Oracle E-Business Suite (component: Upload). Supported versions that are affected are 12.2.3-12.2.11. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle Web Applications Desktop Integrator. Successful attacks of this vulnerability can result in takeover of Oracle Web Applications Desktop Integrator. CVSS 3.1 Base Score 9.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).

    Source: pwn.watch, NVD (NIST), cvelistv5, CISA KEV Catalog, CVE.org (MITRE)

    Affected products

    The following versions are affected. Older releases of the same product line are also vulnerable unless stated otherwise.

    Affected products
    Affected versionsFixed in
    Oracle CorporationWeb Applications Desktop Integrator
    • 12.2.3-12.2.11
    • —
    oraclee-business_suite
    • 12.2.3 – ≤ 12.2.11
    • —

    Vendors and products

    Public exploit references

    Publicly reported proof-of-concepts, exploit modules and detection templates for this vulnerability. NEOSEC links to the original sources only and does not provide any exploit code.

    Public exploit references
    CISA KEV CatalogCISA Known Exploited Vulnerability (opens in a new tab)cisa.govactively exploited
    Packet StormOracle E Business Suite EBS Unauthenticated Arbitrary File Upload (opens in a new tab)packetstormsecurity.comPoC (publicly reported)reported, not verified—

    References & sources

    • oracle.comVendor advisory: Oracle E-Business SuitePatch, Vendor advisory, pwn-watch
    • packetstormsecurity.comfiles/171208/Oracle-E-Business-Suite-EBS-Unauthenticated-Arbitr…Exploit, Third-party advisory, Vulnerability database
    • cisa.govknown-exploited-vulnerabilities-catalog?field_cve=CVE-2022-21587government-resource, US government resource
    • pwn.watchpwn.watch: Oracle E-Business Suite: Unspecified (CVE-2022-21587)pwn-watch
    • NVD (NIST)NVD: CVE-2022-21587pwn-watch
    • cisa.govCISA Known Exploited Vulnerabilities Catalogpwn-watch
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