Munge
Monthly
Cryptographic key disclosure and credential forgery in MUNGE 0.5 through 0.5.17 lets a local user extract munged's MAC subkey from process memory and forge arbitrary credentials. By sending a crafted message with an oversized address-length field, an attacker triggers an out-of-bounds write that corrupts munged's internal state and leaks the key used to validate credentials, enabling impersonation of any user including root across every service that trusts MUNGE for authentication. EPSS is very low (0.02%) and there is no public exploit identified at time of analysis, but MUNGE's role as a cluster trust anchor makes the impact severe wherever it is deployed.
Cryptographic key disclosure and credential forgery in MUNGE 0.5 through 0.5.17 lets a local user extract munged's MAC subkey from process memory and forge arbitrary credentials. By sending a crafted message with an oversized address-length field, an attacker triggers an out-of-bounds write that corrupts munged's internal state and leaks the key used to validate credentials, enabling impersonation of any user including root across every service that trusts MUNGE for authentication. EPSS is very low (0.02%) and there is no public exploit identified at time of analysis, but MUNGE's role as a cluster trust anchor makes the impact severe wherever it is deployed.