Quote:Adobe on Tuesday released three patches – including a fix for a flaw in Adobe Acrobat and Reader that exposes hashed passwords that already has a proof-of-concept (PoC) exploit code publicly available.

The information disclosure vulnerability, CVE-2018-15979, exists in Adobe Acrobat and Reader for Windows and was reported by the EdgeSpot team.

“Successful exploitation could lead to an inadvertent leak of the user’s hashed NTLM password,” said Adobe, in its release. NTLM is the authentication protocol used on networks that include systems running the Windows operating system and on standalone systems.

While no further information about the PoC was revealed, Adobe said the attack allows bad actors to redirect a user to a malicious resource outside their organization to obtain the NTLM authentication messages.