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cvelistCloudflareCVELIST:CVE-2023-1862
HistoryJun 20, 2023 - 8:28 a.m.

CVE-2023-1862 Remote access to warp-svc.exe in Cloudflare WARP

2023-06-2008:28:12
CWE-284
cloudflare
www.cve.org
1
cve-2023-1862
remote access
cloudflare warp
windows
vulnerability
ipc named pipe
network diagnostics
access control policy

7.3 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

LOW

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

0.001 Low

EPSS

Percentile

24.3%

Cloudflare WARP client for Windows (up to v2023.3.381.0) allowed a malicious actor to remotely access the warp-svc.exeΒ binary due to an insufficient access control policy on an IPC Named Pipe. This would have enabled an attacker to trigger WARP connect and disconnect commands, as well as obtaining network diagnostics and application configuration from the target’s device. It is important to note that in order to exploit this, a set of requirements would need to be met, such as the target’s device must’ve been reachable on port 445, allowed authentication with NULL sessions or otherwise having knowledge of the target’s credentials.

CNA Affected

[
  {
    "defaultStatus": "unaffected",
    "packageName": "WARP",
    "platforms": [
      "Windows"
    ],
    "product": "WARP Client",
    "vendor": "Cloudflare",
    "versions": [
      {
        "changes": [
          {
            "at": "2023.3.381.0",
            "status": "unaffected"
          }
        ],
        "lessThan": "2023.3.381.0",
        "status": "affected",
        "version": "0",
        "versionType": "patch"
      }
    ]
  }
]

7.3 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

LOW

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

0.001 Low

EPSS

Percentile

24.3%

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