SAP BEx Web Java Runtime Export Web Service: XML Injection
CVE-2024-42374 is a high-severity XML injection vulnerability in SAP BEx Web Java Runtime Export Web Service from SAP, with a CVSS 3.1 base score of 8.2 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, without any action from a user. Affected SAP BEx Web Java Runtime Export Web Service versions: BI-BASE-E 7.5; BI-BASE-B 7.5; BI-IBC 7.5, and others listed below. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 0.54% chance of exploitation within 30 days, which is low compared with other CVEs.
High severity with no evidence of exploitation so far.
What to do
- Check which version of SAP BEx Web Java Runtime Export Web Service you run against the affected versions below, and install the vendor's latest release.
- Read the advisory on url.sap for workarounds and exact fixed builds.
- Until you can update, restrict network access to the affected service so it is not reachable from untrusted networks.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| SAP | SAP BEx Web Java Runtime Export Web Service | BI-BASE-E 7.5; BI-BASE-B 7.5; BI-IBC 7.5; BI-BASE-S 7.5; BIWEBAPP 7.5 | Not stated |
| SAP | bex_web_java_runtime_export_web_service | bi-base-e7.5; bi-base-b7.5; bi-base-s7.5; biwebapp7.5; bi-ibc7.5 | Not stated |
Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.
How the severity score breaks down
- Attack vector
- NetworkCan be exploited remotely over a network, including the internet.
- Attack complexity
- LowNo special conditions are needed; the attack works reliably.
- Privileges required
- NoneNo account or login is needed.
- User interaction
- NoneNo action by a victim is required.
- Scope
- UnchangedImpact stays within the vulnerable component.
- Confidentiality
- LowSome restricted data can be read.
- Integrity
- NoneNothing can be modified.
- Availability
- HighThe component can be taken down completely.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H. Scored by NVD.
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 3.1 | 8.2 | High | CNA (sap.com) |
| CVSS 3.1 | 8.2 | High | NVD |
Official description
BEx Web Java Runtime Export Web Service does not sufficiently validate an XML document accepted from an untrusted source. An attacker can retrieve information from the SAP ADS system and exhaust the number of XMLForm service which makes the SAP ADS rendering (PDF creation) unavailable. This affects the confidentiality and availability of the application.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: XML Injection
The product does not properly neutralize special elements that are used in XML, allowing attackers to modify the syntax, content, or commands of the XML before it is processed by an end system.
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: yes, technical impact: partial).
- Record last changed materially (score, affected products, status or references).
References
Advisories
Other references
- me.sap.com/notes/3485284Permissions Required
Recent XML Injection vulnerabilities
- 7.8 High severity
- 8.1 High severity
- 7.2 High severity
- 8.8 High severity
- 9.8 Critical severity
- 8.0 High severity
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