critical
10
CWE
119
Advisory Published
Updated

CVE-2017-11420: Buffer Overflow

First published: Tue Jul 18 2017(Updated: )

Stack-based buffer overflow in ASUS_Discovery.c in networkmap in Asuswrt-Merlin firmware for ASUS devices and ASUS firmware for ASUS RT-AC5300, RT_AC1900P, RT-AC68U, RT-AC68P, RT-AC88U, RT-AC66U, RT-AC66U_B1, RT-AC58U, RT-AC56U, RT-AC55U, RT-AC52U, RT-AC51U, RT-N18U, RT-N66U, RT-N56U, RT-AC3200, RT-AC3100, RT_AC1200GU, RT_AC1200G, RT-AC1200, RT-AC53, RT-N12HP, RT-N12HP_B1, RT-N12D1, RT-N12+, RT_N12+_PRO, RT-N16, and RT-N300 devices allows remote attackers to execute arbitrary code via long device information that is mishandled during a strcat to a device list.

Credit: cve@mitre.org

Affected SoftwareAffected VersionHow to fix
ASUS Asuswrt-Merlin<=3.0.0.4.380.7743
Asuswrt-Merlin project RT-AC5300 firmware
Asuswrt-Merlin project RT-AC1900P<=3.0.0.4.380.7743
Asuswrt-Merlin project RT-AC1900P firmware
Asuswrt-Merlin project RT-AC68U<=3.0.0.4.380.7743
Asuswrt-Merlin project RT-AC68U firmware
ASUS Asuswrt-Merlin<=3.0.0.4.380.7743
Asuswrt-Merlin project RT-AC68P firmware
ASUS Asuswrt-Merlin<=3.0.0.4.380.7743
Asuswrt-Merlin project RT-AC88U firmware
ASUS Asuswrt-Merlin<=3.0.0.4.380.7743
Asuswrt-Merlin
Asuswrt-Merlin project RT-AC66U B1 firmware<=3.0.0.4.380.7743
Asuswrt-Merlin
Asuswrt-Merlin<=3.0.0.4.380.7485
Asuswrt-Merlin project RT-AC58U firmware
ASUS Asuswrt-Merlin<=3.0.0.4.380.7743
Asuswrt-Merlin project RT-AC56U firmware
Asuswrt-Merlin project RT-AC55U<=3.0.0.4.380.7378
Asuswrt-Merlin project RT-AC55U firmware
Asuswrt-Merlin project RT-AC52U<=3.0.0.4.380.4180
Asuswrt-Merlin
Asuswrt-Merlin project RT-AC51U<=3.0.0.4.380.7378
Asuswrt-Merlin project RT-AC51U firmware
Asuswrt-Merlin project RT-N18U<=3.0.0.4.380.7743
Asuswrt-Merlin project RT-N18U firmware
Asuswrt-Merlin project RT-N66U<=3.0.0.4.380.7378
Asuswrt-Merlin project RT-N66U firmware
Asuswrt-Merlin project RT-N56U<=3.0.0.4.378.7177
Asuswrt-Merlin project RT-N56U firmware
Asuswrt-Merlin project RT-AC3200<=3.0.0.4.380.7743
Asuswrt-Merlin project RT-AC3200 firmware
Asuswrt-Merlin project RT-AC3100<=3.0.0.4.380.7743
Asuswrt-Merlin project RT-AC3100 firmware
Asuswrt-Merlin project rt AC1200GU<=3.0.0.4.380.5577
Asuswrt-Merlin project RT-AC1200GU firmware
Asuswrt-Merlin project rt AC1200G<=3.0.0.4.380.3167
Asuswrt-Merlin project rt AC1200G firmware
ASUS Asuswrt-Merlin<=3.0.0.4.380.9880
Asuswrt-Merlin project RT-AC1200 firmware
Asuswrt-Merlin project RT-AC53 firmware<=3.0.0.4.380.9883
Asuswrt-Merlin
Asuswrt-Merlin project RT-N12HP firmware<=3.0.0.4.380.2943
ASUS Asuswrt-Merlin
Asuswrt-Merlin<=3.0.0.4.380.3479
Asuswrt-Merlin project RT-N12HP B1 firmware
Asuswrt-Merlin project RT-N12D1<=3.0.0.4.380.7378
Asuswrt-Merlin RT-N12D1 firmware
Asuswrt-Merlin project RT-N12+ firmware<=3.0.0.4.380.7378
Asuswrt-Merlin
Asuswrt-Merlin project rt n12+ PRO firmware<=3.0.0.4.380.9880
Asuswrt-Merlin project RT-N12+ Pro
Asuswrt-Merlin project RT-N16<=3.0.0.4.380.7378
Asuswrt-Merlin RT-N16 firmware
Asuswrt-Merlin project RT-N300<=3.0.0.4.380.7378
Asuswrt-Merlin project RT-N300 firmware

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2017-11420?

    CVE-2017-11420 is classified as a high severity vulnerability due to the potential for remote code execution resulting from a stack-based buffer overflow.

  • How do I fix CVE-2017-11420?

    To fix CVE-2017-11420, users should update their ASUS devices running affected firmware versions to the latest available firmware that addresses this vulnerability.

  • Which ASUS devices are impacted by CVE-2017-11420?

    CVE-2017-11420 affects various ASUS devices including RT-AC5300, RT-AC1900P, RT-AC68U, and several others running specific versions of Asuswrt-Merlin firmware.

  • What symptoms indicate exploitation of CVE-2017-11420?

    Symptoms of exploitation of CVE-2017-11420 may include unexpected device behavior, crashes, or unauthorized access to the network.

  • Is there a workaround for CVE-2017-11420 aside from updating?

    While updating is the most effective solution for CVE-2017-11420, users can reduce exposure by disabling remote management features if they are not needed.

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