LiveActive security incident?Get immediate response
CVE Record

CVE-2023-31405: Log Injection vulnerability in SAP NetWeaver AS for Java (Log Viewer)

SAP NetWeaver AS for Java - versions ENGINEAPI 7.50, SERVERCORE 7.50, J2EE-APPS 7.50, allows an unauthenticated attacker to craft a request over the network which can result in unwarranted modifications to a system log without user interaction. There is no ability to view any information or any effect on availability.

MediumCVSS 5.3Not KEV-listedUpdated
Discuss exposureBack to CVEs
Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

This flaw lets an unauthenticated network attacker tamper with SAP NetWeaver AS for Java Log Viewer system log entries. It does not expose data or disrupt service, but it can weaken audit reliability and incident investigations.

Executive priority

Treat as a moderate audit-integrity issue. Patch or mitigate during normal SAP security maintenance, faster for externally reachable systems or environments where logs support compliance, fraud detection, or incident response.

Technical view

CVE-2023-31405 is a CWE-117 log injection issue in SAP NetWeaver AS for Java Log Viewer affecting ENGINEAPI 7.50, SERVERCORE 7.50, and J2EE-APPS 7.50. CVSS 3.1 is 5.3: network reachable, low complexity, no privileges or user interaction, low integrity impact only.

Likely exposure

Exposure is limited to organizations running the listed SAP NetWeaver AS for Java 7.50 components. Risk increases when the affected Log Viewer path is reachable from untrusted networks.

Exploitation context

The bundle does not cite active exploitation, and the CVE is not marked KEV. The described impact is unauthorized modification of logs, not data theft, code execution, or denial of service.

Researcher notes

Evidence supports log injection only: integrity impact is low, with no stated confidentiality or availability impact. The provided bundle does not include detailed patch steps, proof of exploitation, or a vendor workaround beyond SAP references.

Mitigation direction

  • Review SAP Note 3324732 and SAP security guidance for the vendor-supported remediation.
  • Prioritize affected internet-reachable or untrusted-network-reachable SAP Java systems.
  • Restrict network access to SAP administrative and log-viewing surfaces where possible.
  • Preserve and monitor security logs for unexpected formatting or suspicious injected entries.

Validation and detection

  • Inventory SAP NetWeaver AS for Java systems and confirm listed 7.50 components.
  • Check whether SAP Note 3324732 remediation is applicable and applied.
  • Confirm affected services are not reachable from unnecessary network zones.
  • Review log integrity controls and alerting for anomalous log records.
Prepared
Confidence
medium
Sources
4

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cwe · low confidence lookup

CWE-117: Exact CWE lookup

Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2023-31405 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
Medium
CVSS
5.3 (3.1)
Known Exploited
No
Published

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

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
0Timeline events
0ADP providers
3Source links

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
5.3CVSS 3.1MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N3.91.4Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

5.3Medium
CVSS 3.1 vector shape for CVE-2023-31405Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

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

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
SAP_SESAP NetWeaver AS for Java (Log Viewer)ENGINEAPI 7.50, SERVERCORE 7.50, J2EE-APPS 7.50unaffected
Weakness

CWE details

CWE-117

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-117 · source CWE mapping

Improper Output Neutralization for Logs

Improper Output Neutralization for Logs represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.

Open CWE intelligenceSame-CWE CVEs