Remote Engine Gen 2: Improper Restriction of XML External Entity Reference
CVE-2022-45588 is a high-severity improper restriction of XML external entity reference vulnerability in Remote Engine Gen 2 from Talend, with a CVSS 3.1 base score of 7.8 out of 10. It can be exploited with local access to the system by an attacker with a low-privileged account, without any action from a user. The record lists version r2022-09 as the first without the flaw, so updating Remote Engine Gen 2 to that release or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 0.19% 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
- Update Remote Engine Gen 2 to r2022-09 or a later version.
- Read the advisory on talend.com for workarounds and exact fixed builds.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Talend | Remote Engine Gen 2 | before r2022-09 | r2022-09 |
Version data comes from NVD's product matching. Confirm against the vendor advisory before deciding you are unaffected.
How the severity score breaks down
- Attack vector
- LocalThe attacker needs local access or must trick a user into running something.
- 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
- HighData or code can be modified at will.
- Availability
- HighThe component can be taken down completely.
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. Scored by NVD.
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 3.1 | 7.8 | High | NVD |
| CVSS 3.1 | 7.8 | High | CISA (ADP) |
Official description
All versions before R2022-09 of Talend's Remote Engine Gen 2 are potentially vulnerable to XML External Entity (XXE) type of attacks. Users should download the R2022-09 release or later and use it in place of the previous version. Talend Remote Engine Gen 1 and Talend Cloud Engine for Design are not impacted. This XXE vulnerability could only be exploited by someone with the appropriate rights to edit pipelines on the Talend platform. It could not be triggered remotely or by other user input.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Improper Restriction of XML External Entity Reference
The product processes an XML document that can contain XML entities with URIs that resolve to documents outside of the intended sphere of control, causing the product to embed incorrect documents into its output.
How developers prevent this class of flaw
- Many XML parsers and validators can be configured to disable external entity expansion.
More Improper Restriction of XML External Entity Reference vulnerabilities (CWE-611)
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: total).
- Record last changed materially (score, affected products, status or references).
References
Recent Improper Restriction of XML External Entity Reference vulnerabilities
- 9.1 Critical severity
- 9.1 Critical severity
- 9.8 Critical severity
- 8.1 High severity
- 7.5 High severity
- 7.5 High severity
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