CVE-2018-15506: In BubbleUPnP 0.9 update 30, the XML parsing engine for SSDP/UPnP functionality is vulnerable to an XML External Entity Processing (XXE) attack. Remote…

PriorityP261critical9.8CVSS 3.0

AVNACLPRNUINSUCHIHAH

EPSS

4.70%

90.7th percentile

In BubbleUPnP 0.9 update 30, the XML parsing engine for SSDP/UPnP functionality is vulnerable to an XML External Entity Processing (XXE) attack. Remote, unauthenticated attackers can use this vulnerability to: (1) Access arbitrary files from the filesystem with the same permission as the user account running BubbleUPnP, (2) Initiate SMB connections to capture a NetNTLM challenge/response and crack the cleartext password, or (3) Initiate SMB connections to relay a NetNTLM challenge/response and achieve Remote Command Execution in Windows domains.

Affected

1 ranges

Vendor	Product	Version range	Fixed in
bubblesoftapps	bubbleupnp	—	—

Detection & IOCsextracted from sources · hover to see the quote

→The vulnerability is in the XML parsing engine for SSDP/UPnP functionality in BubbleUPnP 0.9 update 30, exploitable by unauthenticated remote attackers via XXE injection through SSDP/UPnP messages. ↗
→Monitor for outbound SMB connections originating from the BubbleUPnP process, which may indicate XXE-driven SMB relay or NetNTLM hash capture attempts. ↗
→Monitor for unexpected file read activity by the BubbleUPnP process, which may indicate XXE-driven local file disclosure. ↗

·The vulnerability affects specifically BubbleUPnP version 0.9 update 30; other versions are not confirmed affected by the NVD entry. ↗

CVSS provenance

nvdv3.09.8CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

nvdv2.07.5HIGHAV:N/AC:L/Au:N/C:P/I:P/A:P

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