201281d61631ce773f6e8dc02fce915e65fd2d14
2
Commits
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96f269dadb |
Boundaries that were supposed to hold
The security pass. Six findings, none reachable by visiting the site and every one a boundary this codebase says it keeps. A subagent is pinned to a list of read-only commands, in every mode, unattended, with no card anybody could approve -- and `find *` was on it. find writes files with -fprintf, runs programs with -exec and removes them with -delete, and none of that needs a character the metacharacter guard refuses. A page the model had just read could ask for a helper and get a key into authorized_keys, from Plan mode, which promises to change nothing. Refused in `subject()` rather than trimmed from the list: a pattern cannot say "and no dangerous flags", and "this one looks read-only" is exactly what put find there. The loopback guard missed `0.0.0.0`, which is not is_loopback but does connect to localhost -- so it answered a *decided* False and skipped the DNS half too. The one spelling of "this machine" that walked past a guard whose whole job is that sentence. Twice in the update helper, which is the one place this deliberately crosses a privilege boundary: root ran a script the service account owns, and root sourced a file that account can replace. Either turns a compromise of the web application into root. The first needed no compromise at all -- a pull happens as the service user and root runs whatever it fetched, so control of the branch was control of root. The old test asserted that exact ExecStart line and had pinned it in place. Push endpoints skipped check_url, the only outbound request that did. And a chat could be filed in another account's folder, which hands over its system prompt -- `_new_chat` resolved the folder, discarded it when it was not the caller's, and stored the raw id anyway. An existing helper install keeps the old wiring until install.sh is re-run; update.sh now says so when it finds itself inside the checkout. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> |
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1b8c9f948c |
Grants that outlive what they name, and a rule you can read
sharing.forget_principal has existed since shares did, documented as the thing that stops a recycled id inheriting somebody's grant, and was called by nobody. Deleting a group left every grant naming it; deleting an account left both the grants to it and the grants of its own work -- that second half is the one nothing else could catch, since their rows cascade and the shares of those rows have nothing to cascade from. Both now run before the delete, while the rows are still findable, and a deleted resource forgets its own. library.share defaulted to False, which meant sharing shipped documented as done and unreachable: the panel only renders for somebody holding it, so out of the box nobody could share anything and nothing said why. It is on. The panel itself was checkboxes inside the resource's *save form*, listing every group and every account on the instance, unpaginated, on every detail page -- and a tick only took effect if you also saved the resource. It is its own routes now: search, one grant per POST, the panel re-rendered from what is stored. Anything already shared stays listed whatever the search says, or removing a grant would mean searching for the name it was given to. Reports join the shareable set and memories still do not: a finished piece of work is the thing somebody most wants to hand over, and a record about a person is not content to pass round. reports.visible became sharing.visible_to, which is the one line its own docstring predicted. Two things fell out: `owned` beside `get`, because sharing grants reading and deleting is the owner's alone; and reading somebody else's report no longer clears their unread dot. Permissions gained the answer to "what can this person actually do?" -- explain() is resolve()'s working shown rather than thrown away, naming admin, the baseline, or the groups that granted each one. That is the simulation the union rule exists to make unnecessary, and until now the only way to get it was to open every group and read the grids by eye. Users and groups are list-plus-detail, and membership is edited from one side: it was on both, and a full-form POST from either overwrote what the other had shown. Read and write are split for notes, memory and skills -- checked on the tool's declared risk, after the gate so it can only narrow, and defaulting on. Quotas are the union rule applied to numbers, with the corner that makes it interesting: zero means "no limit" and wins outright, or a group saying unlimited would count for less than one saying a million. Absent means "no opinion". _narrower folds a group's ceiling with the instance's and is deliberately not min, for the same reason. Five axes, enforced where each is knowable -- before a reply is built, before a second one starts, on an agent reply's clock, before a minute of GPU, and beside the helper cap -- and usage is recorded even for a reply that was stopped or errored, because an endpoint charges either way. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> |