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CVE-2021-35587 is a critical vulnerability in Oracle Access Manager, specifically the OpenSSO Agent component of Oracle Fusion Middleware. Affected supported versions are 11.1.2.3.0, 12.2.1.3.0, and 12.2.1.4.0. The vulnerability is remotely exploitable over HTTP by an unauthenticated attacker and is described as easily exploitable. Successful exploitation can result in full compromise or takeover of Oracle Access Manager. Public reporting in the available material repeatedly characterizes the flaw as enabling pre-authentication remote code execution against Oracle Access Manager deployments, but the precise root cause and vulnerable function are not disclosed in the available information.
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What an attacker gets, and what they’ve been doing with it.
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Patch, then assume compromise.
1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos.
This repository contains a single Metasploit module targeting CVE-2021-35587, a critical unauthenticated remote code execution vulnerability in Oracle Access Manager (OAM) versions 11.1.2.3.0, 12.2.1.3.0, and 12.2.1.4.0. The exploit leverages a deserialization flaw in the OpenSSO Agent component, allowing attackers to send a crafted XML payload to the '/oam/server/opensso/sessionservice' endpoint and achieve arbitrary code execution as the OAM service user. The module supports Linux, Unix, and Windows targets, and can deliver a variety of Metasploit payloads (e.g., Meterpreter, reverse shell). It also includes a version check using the '/oam/pages/impconsent.jsp' endpoint to fingerprint the OAM version. The exploit is weaponized, highly configurable, and suitable for operational use in penetration testing or red teaming engagements.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
12 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A pre-authentication remote code execution vulnerability in Oracle Identity Manager mentioned as historical context and an example of prior Oracle vulnerability exploitation.
An older Oracle Access Manager vulnerability mentioned as background context in relation to a prior Oracle breach caused by outdated unpatched servers.
A historical Oracle-related vulnerability referenced as part of vendor security history and breach context.
A possible vulnerability affecting Oracle Fusion Middleware instances that could allow unauthorized access via Oracle Access Manager; it is discussed as a potential cause of the alleged Oracle Cloud-related breach.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.