SAP BusinessObjects Business Intelligence…: Missing XML Validation
CVE-2022-28213 is a high-severity missing XML validation vulnerability in SAP BusinessObjects Business Intelligence Platform from SAP, with a CVSS 3.1 base score of 8.1 out of 10. It can be exploited remotely over the network by an attacker with a low-privileged account, without any action from a user. Affected SAP BusinessObjects Business Intelligence Platform versions: 420; 430. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 12.5% chance of exploitation within 30 days, which is in the top 3.72% of all scored CVEs.
EPSS places it among the vulnerabilities most likely to be exploited soon.
What to do
- Check which version of SAP BusinessObjects Business Intelligence Platform you run against the affected versions below, and install the vendor's latest release.
- Read the advisory on launchpad.support.sap.com for workarounds and exact fixed builds.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| SAP | SAP BusinessObjects Business Intelligence Platform | 420; 430 | Not stated |
| SAP | Businessobjects Business Intelligence Platform | 420; 430 | 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
- LowA basic user account is enough.
- User interaction
- NoneNo action by a victim is required.
- Scope
- UnchangedImpact stays within the vulnerable component.
- Confidentiality
- HighAll data handled by the component 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:L/UI:N/S:U/C:H/I:N/A:H. Scored by NVD.
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 3.1 | 8.1 | High | NVD |
| CVSS 2.0 | 5.5 | Medium | NVD |
Official description
When a user access SOAP Web services in SAP BusinessObjects Business Intelligence Platform - version 420, 430, it does not sufficiently validate the XML document accepted from an untrusted source, which might result in arbitrary files retrieval from the server and in successful exploits of DoS.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Missing XML Validation
The product accepts XML from an untrusted source but does not validate the XML against the proper schema.
How developers prevent this class of flaw
- Always validate XML input against a known XML Schema or DTD. It is not possible for an XML parser to validate all aspects of a document's content because a parser cannot understand the complete semantics of the data. However, a parser can do a complete and thorough job of checking the document's structure and therefore guarantee to the code that processes the document that the content is well-formed.
Timeline
- CVE record published.
- Record last changed materially (score, affected products, status or references).
References
Advisories
Technical write-ups (may include proof of concept)
- packetstormsecurity.com/files/167046/SAP-BusinessObjects-Intelligence-4.3-XML-Injection.htmlExploit, Third Party Advisory, VDB Entry
Other vulnerabilities in SAP BusinessObjects Business Intelligence Platform
- 8.1 High severity
- 7.1 High severity
- 9.1 Critical severity
- 9.8 Critical severity
- 9.3 Critical severity
- 7.5 High severity
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