SAP NetWeaver 7.40 insufficient logging

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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3.2$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in SAP NetWeaver 7.40. The impacted element is an unknown function. The manipulation leads to insufficient logging. This vulnerability is listed as CVE-2016-7437. The attack must be carried out locally. There is no available exploit. Applying a patch is the recommended action to fix this issue.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in SAP NetWeaver 7.40 (Solution Stack Software). This issue affects some unknown processing. The manipulation with an unknown input leads to a insufficient logging vulnerability. Using CWE to declare the problem leads to CWE-778. When a security-critical event occurs, the product either does not record the event or omits important details about the event when logging it. Impacted is confidentiality, integrity, and availability.

The weakness was presented 10/11/2016 by Emiliano J. Fausto as ONAPSIS-2016-051 as not defined mailinglist post (Full-Disclosure). The advisory is shared at seclists.org. The identification of this vulnerability is CVE-2016-7437 since 09/09/2016. The exploitation is known to be easy. An attack has to be approached locally. Required for exploitation is a simple authentication. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1562.002 for this issue. The advisory points out:

Even when configuring the parameter rfc/callback_security_method and the SAP Security Audit Log to consider RFC callbacks events (Accepted/Rejected), both events DUI/DUJ will be logged in the SAP Security Audit Log as Non-critical. As the information provided by the SAP Security Audit Log to the security expert is inaccurate, filtering out non-critical events will also filter rejected attempts to execute RFC function callbacks.

The vulnerability was handled as a non-public zero-day exploit for at least 282 days. During that time the estimated underground price was around $0-$5k.

Applying a patch is able to eliminate this problem. A possible mitigation has been published before and not just after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 93503†). See VDB-92691 for similar entry. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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Version

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.3
VulDB Meta Temp Score: 3.2

VulDB Base Score: 3.3
VulDB Temp Score: 3.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 3.3
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Insufficient logging
CWE: CWE-778
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍

Timelineinfo

11/24/2015 🔍
09/01/2016 +282 days 🔍
09/09/2016 +8 days 🔍
10/11/2016 +32 days 🔍
10/11/2016 +0 days 🔍
10/13/2016 +2 days 🔍
10/13/2016 +0 days 🔍
09/26/2022 +2174 days 🔍

Sourcesinfo

Vendor: sap.com

Advisory: ONAPSIS-2016-051
Researcher: Emiliano J. Fausto
Status: Not defined

CVE: CVE-2016-7437 (🔍)
GCVE (CVE): GCVE-0-2016-7437
GCVE (VulDB): GCVE-100-92693
SecurityFocus: 93503 - SAP NetWeaver CVE-2016-7437 Security Bypass Vulnerability

scip Labs: https://www.scip.ch/en/?labs.20150716
See also: 🔍

Entryinfo

Created: 10/13/2016 10:22
Updated: 09/26/2022 08:10
Changes: 10/13/2016 10:22 (55), 05/08/2019 22:27 (13), 09/26/2022 08:10 (4)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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