Author Archives: CIRT Team



CIRT Team

in Security Advisories & Alerts

Linux Sudo ‘/src/ttyname.c’ Local Privilege Escalation Vulnerability (CVE-2017-1000367)

Description: When determining tty, Sudo does not correctly parse the contents of /proc/[pid]/ stat, local attackers may use this method to overwrite any file on the file system, bypassing expected permissions or getting the root shell. Impact: Local attackers could exploit this issue to run arbitrary commands with root privileges. Sudo versions 1.8.6p7 through 1.8.20 are vulnerable. Mitigation: Updates are available. Please see the references...

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04 Jun 2017
in Security Advisories & Alerts

FreeRADIUS TLS CVE-2017-9148 Authentication Bypass Vulnerability

Description: The TLS session cache in FreeRADIUS before 3.0.14 fails to reliably prevent resumption of an unauthenticated session, which allows remote attackers (such as malicious 802.1X supplicants) to bypass authentication via PEAP or TTLS. Impact:  An attacker can exploit this issue to bypass the authentication mechanism and perform unauthorized actions. This may lead to further attacks. FreeRADIUS versions prior to 3.0.14 are vulnerable. Mitigation: Updates...

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01 Jun 2017
in Security Advisories & Alerts

Linux Kernel CVE-2017-6214 Remote Denial of Service Vulnerability

Description: The tcp_splice_read function in net/ipv4/tcp.c in the Linux kernel before 4.9.11 allows remote attackers to cause a denial of service (infinite loop and soft lockup) via vectors involving a TCP packet with the URG flag. Impact:  Attackers can exploit this issue to cause the kernel to enter into an infinite loop which may cause denial-of-service conditions. Mitigation: Updates are available. Please see the references...

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01 Jun 2017
in Security Advisories & Alerts

Juniper Junos Space CVE-2017-2305 Remote Privilege Escalation Vulnerability

Description: On Juniper Networks EX Series Ethernet Switch, running affected Junos OS versions, has been discovered with a vulnerability in IPv6 processing that may allow a specially crafted IPv6 Neighbor Discovery (ND) packet destined to an EX Series Ethernet Switch to cause a slow memory leak. A malicious network-based packet flood of these crafted IPv6 NDP packets may eventually lead to resource exhaustion and a...

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01 Jun 2017
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