Security Advisory 0046

Security Advisory 0046 PDF Date: March 23, 2020 Version: 1.0 Revision | Date | Changes ---|---|--- 1.0 | March 23, 2020 | Initial Release The CVE-IDs tracking this issue: CVE-2019-17596 CVSSv3 Base Score: 7.5 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Description: This advisory documents the exposure of...

Arista Networks EOS LDP DoS (SA0042)

The version of Arista Networks EOS running on the remote device is affected by a denial of service vulnerability in the Label Distribution Protocol LDP. An unauthenticated, remote attacker can exploit this by establishing an LDP session with the EOS device under race conditions and sending route...

Arista Networks EOS Multiple Vulnerabilities (SA0043)

The version of Arista Networks EOS running on the remote device is affected by the following vulnerabilities: - HTTP/2 implementations are vulnerable to ping floods, potentially leading to a denial of service DoS. An unauthenticated, remote attacker can exploit this, by sending continual pings to...

Arista Networks EOS Linux Kernel TCP Multiple DoS (SA0041)

The version of Arista Networks EOS running on the remote device is affected by the following denial of service DoS vulnerabilities related to TCP networking in the Linux kernel, which can be exploited by a remote, unauthenticated attacker: - SACK Panic. The TCPSKBCBskb-tcpgsosegs value is subject...

Arista Networks EOS kernel DoS (SA0040)

The version of Arista Networks EOS running on the remote device is affected by a denial of service vulnerability in the Linux kernel. An unauthenticated, remote attacker can exploit this, by sending malformed packets with rarely used packet options to a vulnerable switch. Note that Nessus has not...

Arista Networks EOS DoS (SA0039)

The version of Arista Networks EOS running on the remote device is affected by a denial of service DoS vulnerability in the client certificate authentication process, due to the crypto/x509 package in Go not limiting the amount of work performed for each chain verification. A remote,...

Arista Networks EOS 802.1x authentication DoS (SA0038)

The version of Arista Networks EOS running on the remote device is affected by a denial of service DoS vulnerability in the 802.1x authentication feature, and by extension MACSec, when dynamic keys are used. An adjacent, unauthenticated attacker can exploit this, by sending a crafted packet from...

Arista Networks EOS/vEOS IP fragment DoS (SA0037)

The version of Arista Networks EOS running on the remote device is affected by a denial of service DoS vulnerability. The Linux kernel is vulnerable to a DoS attack with low rates of specially modified packets targeting IP fragment re-assembly. An remote, unauthenticated attacker can cause a DoS...

Arista Networks tcpmss_mangle_packet DoS (SA0034)

The version of Arista Networks EOS running on the remote device is affected by a denial of service DoS vulnerability. The tcpmssmanglepacket function in net/netfilter/xtTCPMSS.c in the Linux kernel allows a remote, unauthenticated attacker to cause a DoS use-after-free and memory corruption or...

Arista Networks EOS Mlag agent DOS (SA0032)

The version of Arista Networks EOS running on the remote device is affected by a denial of service DoS vulnerability in the switch's Mlag agent. An unauthenticated, remote attacker can exploit this, by sending crafted UDP packets on a specific UDP port destined to the switch’s IP address, in...

Arista Networks Rib agent DoS (SA0033)

The version of Arista Networks EOS running on the remote device is affected by a denial of service DoS vulnerability. The switch's Rib agent may restart if a malicious BGP peer sends a malformed path attribute in an UPDATE message, resulting in a DoS condition. Note that Nessus has not tested for...

CVE-2020-9015

Arista DCS-7050QX-32S-R 4.20.9M, DCS-7050CX3-32S-R 4.20.11M, and DCS-7280SRAM-48C6-R 4.22.0.1F devices and possibly other products allow attackers to bypass intended TACACS+ shell restrictions via a | character. NOTE: the vendor reports that this is a configuration issue relating to an overly...

CVE-2020-9015

Arista DCS-7050QX-32S-R 4.20.9M, DCS-7050CX3-32S-R 4.20.11M, and DCS-7280SRAM-48C6-R 4.22.0.1F devices and possibly other products allow attackers to bypass intended TACACS+ shell restrictions via a | character. NOTE: the vendor reports that this is a configuration issue relating to an overly...

Design/Logic Flaw

Arista DCS-7050QX-32S-R 4.20.9M, DCS-7050CX3-32S-R 4.20.11M, and DCS-7280SRAM-48C6-R 4.22.0.1F devices and possibly other products allow attackers to bypass intended TACACS+ shell restrictions via a | character. NOTE: the vendor reports that this is a configuration issue relating to an overly...

CVE-2020-9015

Arista DCS-7050QX-32S-R 4.20.9M, DCS-7050CX3-32S-R 4.20.11M, and DCS-7280SRAM-48C6-R 4.22.0.1F devices and possibly other products allow attackers to bypass intended TACACS+ shell restrictions via a | character. NOTE: the vendor reports that this is a configuration issue relating to an overly...

CVE-2020-9015

Arista DCS-7050QX-32S-R 4.20.9M, DCS-7050CX3-32S-R 4.20.11M, and DCS-7280SRAM-48C6-R 4.22.0.1F devices and possibly other products allow attackers to bypass intended TACACS+ shell restrictions via a | character. NOTE: the vendor reports that this is a configuration issue relating to an overly...

CVE-2020-9015

CVE-2020-9015 affects Arista devices including DCS-7050QX-32S-R (version 4.20.9M), DCS-7050CX3-32S-R (version 4.20.11M), and DCS-7280SRAM-48C6-R (version 4.22.0.1F), with potential impact on other products. The issue enables bypassing TACACS+ shell restrictions by providing a pipe character (|) a...

PT-2020-20430 · Arista · Arista Dcs-7050Cx3-32S-R +2

Name of the Vulnerable Software and Affected Versions: Arista DCS-7050QX-32S-R version 4.20.9M Arista DCS-7050CX3-32S-R version 4.20.11M Arista DCS-7280SRAM-48C6-R version 4.22.0.1F Description: The issue allows attackers to bypass intended TACACS+ shell restrictions via a | character. This is...

Arista Networks EOS DNS 2 byte heap based overflow RCE (SA0030)

The version of Arista Networks EOS running on the remote device is affected by a heap-based buffer overflow in dnsmasq. This vulnerability allows a remote, unauthenticated attacker to run arbitrary code, create a denial of service DoS or an out of memory situation. Note that Nessus has not tested...

Arista Networks EOS/vEOS SegmentSmack TCP DoS (SA0036)

The version of Arista Networks EOS or vEOS running on the remote device is affected by a denial of servics DoS vulnerability. A flaw named SegmentSmack was found in the way the Linux kernel handles specially crafted TCP packets. An unauthenticated, remote attacker can use this flaw to trigger tim...