CVE-2018-6651
In the uncurl_ws_accept function in uncurl.c in uncurl before 0.07, as used in Parsec before 140-3, insufficient Origin header validation (accepting an arbitrary substring match) for WebSocket API requests allows remote attackers to bypass intended…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.39%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
In the uncurl_ws_accept function in uncurl.c in uncurl before 0.07, as used in Parsec before 140-3, insufficient Origin header validation (accepting an arbitrary substring match) for WebSocket API requests allows remote attackers to bypass intended access restrictions. In Parsec, this means full control over the victim's computer.
- CVSS 3.0
- 8.8 HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 2.39% probability · 83th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-352
- Affected
- uncurl project/uncurl · parsecgaming/parsec
- Source
- cve@mitre.org
References
- https://gist.github.com/Zenexer/ac7601c0e367d876353137e5099b18a7
- https://github.com/chrisd1100/uncurl/commit/448cd13e7b18c83855d706c564341ddd1e38e769Patch, Third Party Advisory
- https://github.com/chrisd1100/uncurl/releases/tag/0.07Third Party Advisory
- https://gist.github.com/Zenexer/ac7601c0e367d876353137e5099b18a7
- https://github.com/chrisd1100/uncurl/commit/448cd13e7b18c83855d706c564341ddd1e38e769Patch, Third Party Advisory
- https://github.com/chrisd1100/uncurl/releases/tag/0.07Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.