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An out-of-bounds write vulnerability exists in FreeRDP before version 2.1.1, specifically in the crypto_rsa_common function within libfreerdp/crypto/crypto.c. This flaw allows memory corruption due to improper bounds checking during cryptographic operations.
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1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos.
This repository is a proof-of-concept (PoC) exploit for CVE-2020-13398, targeting the FreeRDP client. It consists of a Python script ('server.py') that implements a fake RDP server listening on TCP port 3389. When a client (such as FreeRDP) connects, the server performs a minimal RDP handshake and then sends a crafted license packet with a fake 64-bit RSA modulus and exponent. This malformed packet is designed to trigger a crash or undefined behavior in vulnerable clients, demonstrating the presence of the vulnerability. The repository also includes a brief README file. The exploit is network-based, requiring a client to connect to the attacker's server. No detection or payload customization is present; the code is a straightforward PoC for research and demonstration purposes.
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Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
1 sources tracked across advisories and community write-ups. News coverage will land here when it surfaces.
No news coverage yet. Advisories and community discussion only.
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.