SAP NetWeaver AS JAVA up to 7.50 KeyStore Service improper authorization

| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 7.2 | $5k-$25k | 0.00 |
Summary
A vulnerability classified as critical was found in SAP NetWeaver AS JAVA up to 7.50. Affected by this issue is some unknown functionality of the component KeyStore Service. Executing a manipulation can lead to improper authorization. This vulnerability is handled as CVE-2018-2503. The attack can only be done within the local network. There is not any exploit available.
Details
A vulnerability has been found in SAP NetWeaver AS JAVA up to 7.50 (Solution Stack Software) and classified as critical. This vulnerability affects an unknown function of the component KeyStore Service. The manipulation with an unknown input leads to a improper authorization vulnerability. The CWE definition for the vulnerability is CWE-285. The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:
By default, the SAP NetWeaver AS Java keystore service does not sufficiently restrict the access to resources that should be protected. This has been fixed in SAP NetWeaver AS Java (ServerCore versions 7.11, 7.20, 7.30, 7.31, 7.40, 7.50).
The bug was discovered 12/12/2018. The weakness was released 12/11/2018 (Website). The advisory is shared for download at securityfocus.com. This vulnerability was named CVE-2018-2503 since 12/15/2017. The exploitation appears to be easy. The attack needs to approached within the local network. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $5k-$25k (estimation calculated on 04/20/2020). The MITRE ATT&CK project declares the attack technique as T1548.002.
There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.
The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 106156†). Entry connected to this vulnerability is available at VDB-127877. Once again VulDB remains the best source for vulnerability data.
Product
Type
Vendor
Name
Version
License
Website
- Vendor: https://www.sap.com/
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔍VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 7.2VulDB Meta Temp Score: 7.2
VulDB Base Score: 7.1
VulDB Temp Score: 7.1
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 7.4
NVD Vector: 🔍
CVSSv2
| AV | AC | Au | C | I | A |
|---|---|---|---|---|---|
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
|---|---|---|---|---|---|
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: Improper authorizationCWE: CWE-285 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍
Physical: No
Local: No
Remote: Partially
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
| 0-Day | Unlock | Unlock | Unlock | Unlock |
|---|---|---|---|---|
| Today | Unlock | Unlock | Unlock | Unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: no mitigation knownStatus: 🔍
0-Day Time: 🔍
Timeline
12/15/2017 🔍12/11/2018 🔍
12/11/2018 🔍
12/11/2018 🔍
12/12/2018 🔍
12/12/2018 🔍
04/20/2020 🔍
Sources
Vendor: sap.comAdvisory: securityfocus.com⛔
Status: Not defined
CVE: CVE-2018-2503 (🔍)
GCVE (CVE): GCVE-0-2018-2503
GCVE (VulDB): GCVE-100-127876
SecurityFocus: 106156 - SAP NetWeaver CVE-2018-2503 Information Disclosure Vulnerability
scip Labs: https://www.scip.ch/en/?labs.20150716
See also: 🔍
Entry
Created: 12/12/2018 09:28Updated: 04/20/2020 11:47
Changes: 12/12/2018 09:28 (59), 04/20/2020 11:47 (3)
Complete: 🔍
Cache ID: 216::103
Once again VulDB remains the best source for vulnerability data.
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