Vulnerability Name:

CVE-2021-20049 (CCN-215992)

Assigned:2020-12-17
Published:2021-12-21
Updated:2022-07-08
Summary:A vulnerability in SonicWall SMA100 password change API allows a remote unauthenticated attacker to perform SMA100 username enumeration based on the server responses. This vulnerability impacts 10.2.1.2-24sv, 10.2.0.8-37sv and earlier 10.x versions.
CVSS v3 Severity:7.5 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N)
6.5 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/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): High
Integrity (I): None
Availibility (A): None
5.3 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N)
4.6 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/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): Low
Integrity (I): None
Availibility (A): None
CVSS v2 Severity:5.0 Medium (CVSS v2 Vector: AV:N/AC:L/Au:N/C:P/I:N/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): None
Availibility (A): None
5.0 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:P/I:N/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): None
Availibility (A): None
Vulnerability Type:CWE-203
Vulnerability Consequences:Obtain Information
References:Source: MITRE
Type: CNA
CVE-2021-20049

Source: XF
Type: UNKNOWN
sonicwall-cve202120049-info-disc(215992)

Source: CCN
Type: SonicWall Security Advisory SNWLID-2021-0030
SonicWall SMA100 API username enumeration vulnerability

Source: CONFIRM
Type: Vendor Advisory
https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0030

Vulnerable Configuration:Configuration 1:
  • cpe:/o:sonicwall:sma_100_firmware:10.2.1.2-24sv:*:*:*:*:*:*:*
  • OR cpe:/o:sonicwall:sma_100_firmware:10.2.0.8-37sv:*:*:*:*:*:*:*
  • OR cpe:/o:sonicwall:sma_100_firmware:*:*:*:*:*:*:*:* (Version < 10.0.0.0)
  • AND
  • cpe:/h:sonicwall:sma100:-:*:*:*:*:*:*:*

    • Configuration 2:
  • cpe:/o:sonicwall:sma_200_firmware:10.2.0.8-37sv:*:*:*:*:*:*:*
  • OR cpe:/o:sonicwall:sma_200_firmware:10.2.1.2-24sv:*:*:*:*:*:*:*
  • OR cpe:/o:sonicwall:sma_200_firmware:*:*:*:*:*:*:*:* (Version < 10.0.0.0)
  • AND
  • cpe:/h:sonicwall:sma200:-:*:*:*:*:*:*:*

    • Configuration 3:
  • cpe:/o:sonicwall:sma_210_firmware:10.2.0.8-37sv:*:*:*:*:*:*:*
  • OR cpe:/o:sonicwall:sma_210_firmware:10.2.1.2-24sv:*:*:*:*:*:*:*
  • OR cpe:/o:sonicwall:sma_210_firmware:*:*:*:*:*:*:*:* (Version < 10.0.0.0)
  • AND
  • cpe:/h:sonicwall:sma210:-:*:*:*:*:*:*:*

    • Configuration 4:
  • cpe:/o:sonicwall:sma_400_firmware:10.2.0.8-37sv:*:*:*:*:*:*:*
  • OR cpe:/o:sonicwall:sma_400_firmware:10.2.1.2-24sv:*:*:*:*:*:*:*
  • OR cpe:/o:sonicwall:sma_400_firmware:*:*:*:*:*:*:*:* (Version < 10.0.0.0)
  • AND
  • cpe:/h:sonicwall:sma400:-:*:*:*:*:*:*:*

    • Configuration 5:
  • cpe:/o:sonicwall:sma_410_firmware:10.2.0.8-37sv:*:*:*:*:*:*:*
  • OR cpe:/o:sonicwall:sma_410_firmware:10.2.1.2-24sv:*:*:*:*:*:*:*
  • OR cpe:/o:sonicwall:sma_410_firmware:*:*:*:*:*:*:*:* (Version < 10.0.0.0)
  • AND
  • cpe:/h:sonicwall:sma410:-:*:*:*:*:*:*:*

    • Configuration 6:
  • cpe:/o:sonicwall:sma_500v_firmware:10.2.0.8-37sv:*:*:*:*:*:*:*
  • OR cpe:/o:sonicwall:sma_500v_firmware:10.2.1.2-24sv:*:*:*:*:*:*:*
  • OR cpe:/o:sonicwall:sma_500v_firmware:*:*:*:*:*:*:*:* (Version < 10.0.0.0)
  • AND
  • cpe:/h:sonicwall:sma500v:-:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    sonicwall sma 100 firmware 10.2.1.2-24sv
    sonicwall sma 100 firmware 10.2.0.8-37sv
    sonicwall sma 100 firmware *
    sonicwall sma100 -
    sonicwall sma 200 firmware 10.2.0.8-37sv
    sonicwall sma 200 firmware 10.2.1.2-24sv
    sonicwall sma 200 firmware *
    sonicwall sma200 -
    sonicwall sma 210 firmware 10.2.0.8-37sv
    sonicwall sma 210 firmware 10.2.1.2-24sv
    sonicwall sma 210 firmware *
    sonicwall sma210 -
    sonicwall sma 400 firmware 10.2.0.8-37sv
    sonicwall sma 400 firmware 10.2.1.2-24sv
    sonicwall sma 400 firmware *
    sonicwall sma400 -
    sonicwall sma 410 firmware 10.2.0.8-37sv
    sonicwall sma 410 firmware 10.2.1.2-24sv
    sonicwall sma 410 firmware *
    sonicwall sma410 -
    sonicwall sma 500v firmware 10.2.0.8-37sv
    sonicwall sma 500v firmware 10.2.1.2-24sv
    sonicwall sma 500v firmware *
    sonicwall sma500v -