Vulnerability Name:

CVE-2021-20034 (CCN-210014)

Assigned:2020-12-17
Published:2021-09-23
Updated:2022-07-08
Summary:An improper access control vulnerability in SMA100 allows a remote unauthenticated attacker to bypass the path traversal checks and delete an arbitrary file potentially resulting in a reboot to factory default settings.
CVSS v3 Severity:9.1 Critical (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H)
7.9 High (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H/E:U/RL:O/RC:C)
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): None
Integrity (I): High
Availibility (A): High
9.1 Critical (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H)
7.9 High (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H/E:U/RL:O/RC:C)
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): None
Integrity (I): High
Availibility (A): High
CVSS v2 Severity:6.4 Medium (CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:P/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): Partial
Availibility (A): Partial
9.4 High (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:C/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): Complete
Availibility (A): Complete
Vulnerability Type:CWE-22
Vulnerability Consequences:Bypass Security
References:Source: MITRE
Type: CNA
CVE-2021-20034

Source: MISC
Type: Exploit, Third Party Advisory, VDB Entry
http://packetstormsecurity.com/files/164564/SonicWall-SMA-10.2.1.0-17sv-Password-Reset.html

Source: XF
Type: UNKNOWN
sonicwall-cve202120034-sec-bypass(210014)

Source: CCN
Type: Packet Storm Security [10-20-2021]
SonicWall SMA 10.2.1.0-17sv Password Reset

Source: CCN
Type: SonicWall Security Advisory: SNWLID-2021-0021
Unauthenticated SMA100 arbitrary file delete vulnerability

Source: CONFIRM
Type: Vendor Advisory
https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0021

Source: EXPLOIT-DB
Type: EXPLOIT
Offensive Security Exploit Database [10-20-2021]

Vulnerable Configuration:Configuration 1:
  • cpe:/o:sonicwall:sma_200_firmware:*:*:*:*:*:*:*:* (Version >= 10.2.0.0 and <= 10.2.0.7-34sv)
  • OR cpe:/o:sonicwall:sma_200_firmware:*:*:*:*:*:*:*:* (Version >= 10.2.1.0 and <= 10.2.1.0-17sv)
  • OR cpe:/o:sonicwall:sma_200_firmware:*:*:*:*:*:*:*:* (Version <= 9.0.0.10-28sv)
  • AND
  • cpe:/h:sonicwall:sma_200:-:*:*:*:*:*:*:*

    • Configuration 2:
  • cpe:/o:sonicwall:sma_210_firmware:*:*:*:*:*:*:*:* (Version >= 10.2.1.0 and <= 10.2.1.0-17sv)
  • OR cpe:/o:sonicwall:sma_210_firmware:*:*:*:*:*:*:*:* (Version >= 10.2.0.0 and <= 10.2.0.7-34sv)
  • OR cpe:/o:sonicwall:sma_210_firmware:*:*:*:*:*:*:*:* (Version <= 9.0.0.10-28sv)
  • AND
  • cpe:/h:sonicwall:sma_210:-:*:*:*:*:*:*:*

    • Configuration 3:
  • cpe:/o:sonicwall:sma_400_firmware:*:*:*:*:*:*:*:* (Version >= 10.2.0.0 and <= 10.2.0.7-34sv)
  • OR cpe:/o:sonicwall:sma_400_firmware:*:*:*:*:*:*:*:* (Version >= 10.2.1.0 and <= 10.2.1.0-17sv)
  • OR cpe:/o:sonicwall:sma_400_firmware:*:*:*:*:*:*:*:* (Version <= 9.0.0.10-28sv)
  • AND
  • cpe:/h:sonicwall:sma_400:-:*:*:*:*:*:*:*

    • Configuration 4:
  • cpe:/o:sonicwall:sma_410_firmware:*:*:*:*:*:*:*:* (Version >= 10.2.1.0 and <= 10.2.1.0-17sv)
  • OR cpe:/o:sonicwall:sma_410_firmware:*:*:*:*:*:*:*:* (Version >= 10.2.0.0 and <= 10.2.0.7-34sv)
  • OR cpe:/o:sonicwall:sma_410_firmware:*:*:*:*:*:*:*:* (Version <= 9.0.0.10-28sv)
  • AND
  • cpe:/h:sonicwall:sma_410:-:*:*:*:*:*:*:*

    • Configuration 5:
  • cpe:/a:sonicwall:sma_500v:*:*:*:*:*:*:*:* (Version >= 10.2.0.0 and <= 10.2.0.7-34sv)
  • OR cpe:/a:sonicwall:sma_500v:*:*:*:*:*:*:*:* (Version >= 10.2.1.0 and <= 10.2.1.0-17sv)
  • OR cpe:/a:sonicwall:sma_500v:*:*:*:*:*:*:*:* (Version <= 9.0.0.10-28sv)

    • Configuration CCN 1:
  • cpe:/a:sonicwall:sma_500v:9.0.0.10-28sv:*:*:*:*:*:*:*
  • OR cpe:/a:sonicwall:sma_500v:10.2.0.7-34sv:*:*:*:*:*:*:*
  • OR cpe:/a:sonicwall:sma_500v:10.2.1.0-17sv:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    sonicwall sma 200 firmware *
    sonicwall sma 200 firmware *
    sonicwall sma 200 firmware *
    sonicwall sma 200 -
    sonicwall sma 210 firmware *
    sonicwall sma 210 firmware *
    sonicwall sma 210 firmware *
    sonicwall sma 210 -
    sonicwall sma 400 firmware *
    sonicwall sma 400 firmware *
    sonicwall sma 400 firmware *
    sonicwall sma 400 -
    sonicwall sma 410 firmware *
    sonicwall sma 410 firmware *
    sonicwall sma 410 firmware *
    sonicwall sma 410 -
    sonicwall sma 500v *
    sonicwall sma 500v *
    sonicwall sma 500v *
    sonicwall sma 500v 9.0.0.10-28sv
    sonicwall sma 500v 10.2.0.7-34sv
    sonicwall sma 500v 10.2.1.0-17sv