CVE-2021-37425: Altova MobileTogether Server before 7.3 SP1 allows XXE attacks, such as an InfoSetChanges/Changes attack against /workflowmanagement, or reading…

PriorityP272critical9.1CVSS 3.1

AVNACLPRNUINSUCHINAH

EXPLOIT

EPSS

66.28%

99.2th percentile

Altova MobileTogether Server before 7.3 SP1 allows XXE attacks, such as an InfoSetChanges/Changes attack against /workflowmanagement, or reading mobiletogetherserver.cfg and then reading the certificate and private key.

Affected

2 ranges

Vendor	Product	Version range	Fixed in
altova	mobiletogether_server	—	—
altova	mobiletogether_server	>= 7.0 < 7.3	7.3

Detection & IOCsextracted from sources · hover to see the quote

url/workflowmanagement↗

pathC:\ProgramData\Altova\MobileTogetherServer\mobiletogetherserver.cfg↗

path/public/EuroFXrates↗

port8085↗

otherServer: CherryPy/18.1.0↗

→Monitor POST requests to /workflowmanagement containing XML external entity declarations (DOCTYPE with ENTITY keywords) embedded within the JSON field InfosetChanges/Changes. ↗
→Alert on HTTP requests to /workflowmanagement where the JSON body contains the string 'InfosetChanges' and XML DOCTYPE/ENTITY declarations, indicating an XXE attempt. ↗
→Detect attempts to read the fixed-path configuration file mobiletogetherserver.cfg via XXE, which may expose certificate and private key paths. ↗
→Detect XML exponential entity expansion (billion laughs) payloads in requests to /workflowmanagement, which can cause denial of service via huge server-side resource allocation. ↗
→Flag use of default credentials (root:root, Base64: cm9vdDpyb290) in Authorization headers targeting MobileTogether Server endpoints. ↗
→Identify outbound SSRF requests originating from the MobileTogether Server process, triggered by external XML entity references pointing to internal or external URLs. ↗

·File disclosure via XXE is limited to non-binary files and requires the absolute path to be known in advance. ↗
·Affected versions span 7.0–7.3 and potentially earlier; the fixed version is 7.3 SP1. ↗

CVSS provenance

nvdv3.19.1CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

nvdv2.06.4MEDIUMAV:N/AC:L/Au:N/C:P/I:N/A:P

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