HighPublic exploit

Stack-based Buffer Overflow in Synactis PDF In-The-Box ActiveX ConnectToSynactis

IdentifiersCVE-2013-10057CWE-121· Stack-based Buffer Overflow

CVE-2013-10057 is a stack-based buffer overflow in the Synactis PDF In-The-Box ActiveX control, PDF_IN_1.ocx. The flaw is in the ConnectToSynactis method. Supplying an overly long string to this method, intended to populate the ldCmdLine argument of a WinExec call, triggers an unsafe strcpy operation. The copy overruns a stack buffer and overwrites a saved TRegistry class pointer on the stack. An attacker can exploit this remotely by luring a user to a malicious webpage that instantiates the vulnerable ActiveX control, leading to arbitrary code execution in the security context of the current user. The issue was identified through the control's presence in third-party software including Logic Print 2013.

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ANALYST BRIEF

Impact, mitigation & remediation

What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.

Impact

What an attacker gets, and what they’ve been doing with it.

Successful exploitation allows arbitrary code execution on the victim system in the context of the logged-in user. Because exploitation is delivered through a malicious webpage that invokes the vulnerable ActiveX control, the attacker can gain the ability to run attacker-controlled code, which may enable malware installation, data theft, persistence, or further compromise subject to the privileges of the user and host protections.

Mitigation

If you can’t patch tonight, do this now.

Disable or restrict ActiveX execution in browsers and security zones where the control could be instantiated. Set the kill bit for the vulnerable ActiveX control if an appropriate CLSID mapping is available in the environment. Prevent untrusted or Internet-origin webpages from loading ActiveX controls, use browser hardening and least-privilege user accounts, and consider application whitelisting or endpoint exploit protections to reduce the likelihood and impact of successful exploitation.

Remediation

Patch, then assume compromise.

Update or replace the vulnerable Synactis PDF In-The-Box ActiveX control (PDF_IN_1.ocx) with a vendor-fixed version if available. If no patched version is available, remove the control from affected systems, unregister the OCX, or eliminate software packages that bundle the vulnerable component, including affected third-party applications such as Logic Print 2013. Review application dependencies to ensure the vulnerable ActiveX control is no longer exposed to browser-based instantiation.

PUBLIC EXPLOITS

Exploits

1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos.

VALID 1 / 1 TOTALView more in app

synactis_connecttosynactis_bof.rbMaturityWeaponizedFrameworkmetasploitVerified exploit

This repository contains a single Metasploit exploit module targeting a stack buffer overflow in the Synactis PDF In-The-Box ActiveX control (PDF_IN_1.ocx), as used in products like Logic Print 2013. The exploit is delivered via a malicious HTML/JavaScript page served by the Metasploit HTTP server. When a vulnerable version of Internet Explorer (7 or 8) on Windows XP SP3 visits the page, the exploit triggers a buffer overflow in the ConnectToSynactis method of the ActiveX control, allowing arbitrary code execution via a heap spray and ROP chain. The module is operational and allows for custom shellcode payloads. The main fingerprintable endpoint is the HTTP server delivering the exploit, and the exploit specifically targets the ActiveX control identified by classid C80CAF1F-C58E-11D5-A093-006097ED77E6. The repository is structured as a single Ruby file within the Metasploit framework, and all exploit logic is contained within this file.

Disclosed May 30, 2013rubybrowser

ACTIVITY FEED

Recent activity

4 sources tracked across advisories and community write-ups. News coverage will land here when it surfaces.

4 SOURCESView more in app

No news coverage yet. Advisories and community discussion only.

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Exposure mapping

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Threat actor evidence

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Associated malware

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Detection signatures

YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.

Vendor-by-vendor mapping

Cross-references every affected SKU, including bundled OEM variants.

Social activity4