Vulnerability Name:

CVE-2018-18319

Assigned:2018-10-15
Published:2018-10-15
Updated:2020-08-24
Summary:** DISPUTED ** An issue was discovered in the Merlin.PHP component 0.6.6 for Asuswrt-Merlin devices. An attacker can execute arbitrary commands because api.php has an eval call, as demonstrated by the /6/api.php?function=command&class=remote&Cc='ls' URI.
Note: the vendor indicates that Merlin.PHP is designed only for use on a trusted intranet network, and intentionally allows remote code execution.
CVSS v3 Severity:9.8 Critical (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
7.3 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): Low
Integrity (I): Low
Availibility (A): Low
CVSS v2 Severity:7.5 High (CVSS v2 Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): Partial
7.5 High (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): Partial
Vulnerability Type:CWE-94
References:Source: MISC
Type: Exploit, Third Party Advisory
http://blog.51cto.com/010bjsoft/2298902

Source: MITRE
Type: CNA
CVE-2018-18319

Source: MISC
Type: Exploit, Third Party Advisory
https://github.com/qoli/Merlin.PHP/issues/27

Vulnerable Configuration:Configuration 1:
  • cpe:/o:asuswrt-merlin_project:rt-ac5300_firmware:*:*:*:*:*:*:*:* (Version <= 380.70)
  • AND
  • cpe:/h:asuswrt-merlin_project:rt-ac5300:-:*:*:*:*:*:*:*

    • Configuration 2:
  • cpe:/o:asuswrt-merlin_project:rt_ac1900p_firmware:*:*:*:*:*:*:*:* (Version <= 380.70)
  • AND
  • cpe:/h:asuswrt-merlin_project:rt_ac1900p_:-:*:*:*:*:*:*:*

    • Configuration 3:
  • cpe:/o:asuswrt-merlin_project:rt-ac68u_firmware:*:*:*:*:*:*:*:* (Version <= 380.70)
  • AND
  • cpe:/h:asuswrt-merlin_project:rt-ac68u:-:*:*:*:*:*:*:*

    • Configuration 4:
  • cpe:/o:asuswrt-merlin_project:rt-ac68p_firmware:*:*:*:*:*:*:*:* (Version <= 380.70)
  • AND
  • cpe:/h:asuswrt-merlin_project:rt-ac68p:-:*:*:*:*:*:*:*

    • Configuration 5:
  • cpe:/o:asuswrt-merlin_project:rt-ac88u_firmware:*:*:*:*:*:*:*:* (Version <= 380.70)
  • AND
  • cpe:/h:asuswrt-merlin_project:rt-ac88u:-:*:*:*:*:*:*:*

    • Configuration 6:
  • cpe:/o:asuswrt-merlin_project:rt-ac66u_b1_firmware:*:*:*:*:*:*:*:* (Version <= 380.70)
  • AND
  • cpe:/h:asuswrt-merlin_project:rt-ac66u_b1:-:*:*:*:*:*:*:*

    • Configuration 7:
  • cpe:/o:asuswrt-merlin_project:rt-ac56u_firmware:*:*:*:*:*:*:*:* (Version <= 380.70)
  • AND
  • cpe:/h:asuswrt-merlin_project:rt-ac56u:-:*:*:*:*:*:*:*

    • Configuration 8:
  • cpe:/o:asuswrt-merlin_project:rt-ac3200_firmware:*:*:*:*:*:*:*:* (Version <= 380.70)
  • AND
  • cpe:/h:asuswrt-merlin_project:rt-ac3200:-:*:*:*:*:*:*:*

    • Configuration 9:
  • cpe:/o:asuswrt-merlin_project:rt-ac68uf_firmware:*:*:*:*:*:*:*:* (Version <= 380.70)
  • AND
  • cpe:/h:asuswrt-merlin_project:rt-ac68uf:-:*:*:*:*:*:*:*

    • Configuration 10:
  • cpe:/o:asuswrt-merlin_project:rt-ac87_firmware:*:*:*:*:*:*:*:* (Version <= 380.70)
  • AND
  • cpe:/h:asuswrt-merlin_project:rt-ac87:-:*:*:*:*:*:*:*

    • Configuration 11:
  • cpe:/o:asuswrt-merlin_project:rt-ac3100_firmware:*:*:*:*:*:*:*:* (Version <= 380.70)
  • AND
  • cpe:/h:asuswrt-merlin_project:rt-ac3100:-:*:*:*:*:*:*:*

    • Configuration 12:
  • cpe:/o:asuswrt-merlin_project:rt-ac1900_firmware:*:*:*:*:*:*:*:* (Version <= 380.70)
  • AND
  • cpe:/h:asuswrt-merlin_project:rt-ac1900:-:*:*:*:*:*:*:*

    • Configuration 13:
  • cpe:/o:asuswrt-merlin_project:rt-ac86u_firmware:*:*:*:*:*:*:*:* (Version <= 380.70)
  • AND
  • cpe:/h:asuswrt-merlin_project:rt-ac86u:-:*:*:*:*:*:*:*

    • Configuration 14:
  • cpe:/o:asuswrt-merlin_project:rt-ac2900_firmware:*:*:*:*:*:*:*:* (Version <= 380.70)
  • AND
  • cpe:/h:asuswrt-merlin_project:rt-ac2900:-:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    asuswrt-merlin_project rt-ac5300 firmware *
    asuswrt-merlin_project rt-ac5300 -
    asuswrt-merlin_project rt ac1900p firmware *
    asuswrt-merlin_project rt ac1900p -
    asuswrt-merlin_project rt-ac68u firmware *
    asuswrt-merlin_project rt-ac68u -
    asuswrt-merlin_project rt-ac68p firmware *
    asuswrt-merlin_project rt-ac68p -
    asuswrt-merlin_project rt-ac88u firmware *
    asuswrt-merlin_project rt-ac88u -
    asuswrt-merlin_project rt-ac66u b1 firmware *
    asuswrt-merlin_project rt-ac66u b1 -
    asuswrt-merlin_project rt-ac56u firmware *
    asuswrt-merlin_project rt-ac56u -
    asuswrt-merlin_project rt-ac3200 firmware *
    asuswrt-merlin_project rt-ac3200 -
    asuswrt-merlin_project rt-ac68uf firmware *
    asuswrt-merlin_project rt-ac68uf -
    asuswrt-merlin_project rt-ac87 firmware *
    asuswrt-merlin_project rt-ac87 -
    asuswrt-merlin_project rt-ac3100 firmware *
    asuswrt-merlin_project rt-ac3100 -
    asuswrt-merlin_project rt-ac1900 firmware *
    asuswrt-merlin_project rt-ac1900 -
    asuswrt-merlin_project rt-ac86u firmware *
    asuswrt-merlin_project rt-ac86u -
    asuswrt-merlin_project rt-ac2900 firmware *
    asuswrt-merlin_project rt-ac2900 -