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Critical PPP Daemon Flaw Opens Most Linux Systems to Remote Hackers

Submitted by Roy Schestowitz on Friday 6th of March 2020 03:23:31 AM Filed under
Security

The US-CERT today issued advisory warning users of a new dangerous 17-year-old remote code execution vulnerability affecting the PPP daemon (pppd) software that comes installed on almost all Linux based operating systems, as well as powers the firmware of many other networking devices.
The affected pppd software is an implementation of Point-to-Point Protocol (PPP) that enables communication and data transfer between nodes, primarily used to establish internet links such as those over dial-up modems, DSL broadband connections, and Virtual Private Networks.
Discovered by IOActive security researcher Ilja Van Sprundel, the critical issue is a stack buffer overflow vulnerability that exists due to a logical error in the Extensible Authentication Protocol (EAP) packet parser of the pppd software.

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17-year-old Linux flaw targets ADSL connections

Submitted by Roy Schestowitz on Sunday 8th of March 2020 06:13:47 PM.
  • 17-year-old Linux flaw targets ADSL connections

    Many Linux-based operating systems have been found to be affected by a security flaw which has existed for 17 years.

    The US-Cert has highlighted that PPPD (Point to Point Protocol Daemon) versions 2.4.2 to 2.4.8 are “vulnerable to buffer overflow due to a flaw in Extensible Authentication Protocol (EAP) packet processing in eap_request and eap_response subroutines”.

    “PPP is the protocol used for establishing internet links over dial-up modems, DSL connections, and many other types of point-to-point links including Virtual Private Networks (VPN) such as Point to Point Tunneling Protocol (PPTP),” said US-Cert.

    The vulnerability is caused by an error in validating the size of inputted data before it is copied into memory.

17-Yr-Old RCE Flaw Can Hack Several Linux Systems

Submitted by Roy Schestowitz on Sunday 8th of March 2020 06:30:15 PM.
  • 17-Yr-Old RCE Flaw Can Hack Several Linux Systems

    The US-CERT has issued a security advisory warning users of a 17-year-old critical Remote Code Execution (RCE) vulnerability that affects PPP (Point to Point Protocol Daemon) daemon software implemented in almost all Linux based operating systems.

    The flaw, dubbed as CVE-2020-8597 with a 9.3 CVE score, was discovered by an IOActive security researcher, Ilja Van Sprundel.

PPP Daemon flaw opens Linux distros

Submitted by Roy Schestowitz on Wednesday 11th of March 2020 03:03:21 AM.
  • PPP Daemon flaw opens Linux distros, networking devices to takeover attacks [Ed: How many people even use such devices any longer?]

    A vulnerability (CVE-2020-8597) in the Point-to-Point Protocol Daemon (pppd) software, which comes installed on many Linux-based and Unix-like operating systems and networking devices, can be exploited by unauthenticated attackers to achieve code execution on – and takeover of – a targeted system.

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