test(security): add poc for dsop modifier-map oob read (CVE-2026-65832) - #2
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This was referenced Sep 8, 2026
Ported from deskflow/scripts#12. Placeholder CVE identifiers replaced with the assigned CVE-2026-65832, published 2026-07-03.
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Deskflow ships with TLS on, so a plaintext-only PoC could only verify a non-default configuration. Adds --cert/--key with --no-tls to opt out, ported from the alternative PoC in deskflow/scripts#10. Also guards the handshake and trigger sequence so a peer disconnecting early exits 2 (inconclusive) instead of raising, which kept the exit-code contract from holding. Co-authored-by: manop55555 <109808848+manop55555@users.noreply.github.com>
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Mirrors deskflow/security#2. A malicious or on-path server maps a modifier to an out-of-range index in a dsop message, then sends a key down for it, driving the client into an out-of-bounds read while translating. Adapted from upstream only where the products differ: brand strings in the docstring and the operator output, and the self-signed certificate subject. Synergy is affected. The fix is patched upstream in 1.26.0.299 and our fork point is 1.26.0.216, so this reproduces against current builds. Porting the fix is tracked separately in S1-2167. Co-authored-by: Claude Opus 5 (1M context) <noreply@anthropic.com>
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PoC for CVE-2026-65832: a malicious server poisons
m_modifierTranslationTable[Shift]via DSOP, then a shift keypress drives the out-of-bounds index inServerProxy::translateKey.Ported from deskflow/scripts#12, with @manop55555's TLS listener from deskflow/scripts#10 folded in and credited, since the original was plaintext-only and could not test a default install. Exits 1 on
[FAIL] ... VULNERABLE, 0 on[PASS], 2 when inconclusive.