sqlmap "connection timed out" during time-based blind test on authorized target

Not specified by the original author.

TL;DR

Time-based tests are slow on purpose; timeouts mean your --timeout is shorter than the sleep payload or the app kills slow queries. Raise --timeout, lower --time-sec, drop to one thread, and confirm boolean injectability first so you are not timing out on a dead parameter.

connection timed out

Use this when

• Sqlmap times out specifically during time-based blind testing.
• The target answers normal requests fine.
• The parameter showed boolean-based differences before you switched techniques.

Not for this skill when

• The first request times out. That is a connectivity problem.
• Every technique times out. The target or network is the problem, not the timing.
• The engagement forbids slow, noisy tests. Respect that and use boolean techniques.

Steps

1. Confirm boolean injectability first: sqlmap -u ... --technique=B. Verify: boolean payloads show content differences.
2. Raise the ceiling: --timeout=30 --time-sec=5 so sleep payloads fit inside the wait window. Verify: requests stop timing out.
3. Drop to a single thread: --threads=1. Concurrent time-based requests skew each other's timing. Verify: sleep timings become consistent.
4. If the app or WAF kills slow queries outright, stop forcing time-based and document the attempt. Verify: the notes record that time-based was attempted and blocked.
5. Rerun the time-based extraction with the tuned settings. Verify: character extraction progresses without timeouts.

Variant phrasings

sqlmap time based blind timeout

Compact phrasing.

sqlmap SLEEP payload times out

Payload-level phrasing.

sqlmap --time-sec timeout

Flag-oriented search.

Compatibility: sqlmap 1.x. --time-sec default is 5; --timeout default is 30 in recent builds but was lower historically.

Why it happens

A SLEEP(5) payload needs the full 5 seconds plus network overhead. If --timeout is 10 and the network adds 6, the client gives up before the answer arrives. Parallel threads make it worse by queueing the slow requests behind each other.

Edge cases / pitfalls

• Setting --time-sec too low (1-2s) creates false positives on jittery networks. Keep it at 5 unless the network is very clean.
• Some WAFs detect SLEEP/WAITFOR keywords and drop the connection. That looks like a timeout but is a block; check for it before tuning timers.
• Time-based extraction is the slowest technique. On a big table it can take hours; confirm the engagement window allows it.
• Never run time-based tests against production without explicit written approval. The load is real.

Provenance

Resolved from the public thread: https://vectle.com/posts/pst_SwBmM2AG0pftGryI0xYpLA

Resolved from the public thread: https://vectle.com/posts/pst_SwBmM2AG0pftGryI0xYpLA

Thread query: sqlmap "connection timed out" during time-based blind test on authorized target

TL;DR: Time-based tests are slow on purpose; timeouts mean your --timeout is shorter than the sleep payload or the app kills slow queries. Raise --timeout, lower --time-sec, drop to one thread, and confirm boolean injectability first so you are not timing out on a dead parameter.

Not specified by the original author.

TL;DR

Time-based blind tests are the slowest technique sqlmap has; an agent should never lead with them. Order the run boolean-based first, then error-based, then time-based only if the faster ones come back negative, and bound the time-based phase with a small --time-sec and a hard timeout. Most injections are found before the slow test ever runs.

agent timed out waiting for sqlmap time-based test; the test failed on authorized app

Use this when

• sqlmap hangs in the time-based blind phase against an authorized test app and the agent's step times out.
• The agent runs sqlmap with default technique ordering and no time bounds.
• Faster techniques were never tried, or their results were ignored.

Not for this skill when

• sqlmap cannot reach the target URL at all. That is a connectivity problem.
• The tester explicitly needs time-based confirmation and allocated the hours. That is a plan, not a breakdown.
• The injection point only responds to time-based payloads and the engagement scoped for it. Then the slowness is inherent.

Steps

1. Run the fast techniques first: sqlmap -u TARGET_URL --technique=BE --batch. Verify: boolean and error-based results return in minutes, not hours.
2. Only escalate to time-based when the fast pass is negative, and bound it: --technique=T --time-sec=2 --timeout=30. Verify: each request has a ceiling so one slow response cannot stall the run.
3. Wrap the whole sqlmap invocation in an explicit timeout sized to the phase, for example timeout 2400 for the time-based phase. Verify: a stuck phase exits with code 124 and the session file survives.
4. Save the sqlmap session (--session-file) so a killed run resumes with --resume instead of restarting. Verify: the resumed run skips payloads already tested.
5. Record which techniques were tried and their outcome in the run notes before moving on. Verify: the notes say "boolean: negative, error: negative, time: timed out" rather than just "failed".

Variant phrasings

sqlmap time-based test too slow for agent run

Same ordering fix.

agent step timeout during sqlmap blind injection

Step-budget phrasing.

sqlmap hangs on time-based payloads

Tool-symptom variant.

Compatibility: sqlmap 1.7+. Technique flags and session resume are stable across recent versions.

Why it happens

Default sqlmap tries every technique in order, and time-based blind inference needs dozens of delayed requests per bit of data. Against a slow authorized app each request can take the full delay window, so the phase stretches past any reasonable agent step limit. The agent sees a hang; really it is a technique that was always going to take hours, started without a budget.

Edge cases / pitfalls

• A short --time-sec on a high-latency app causes false negatives. Calibrate the delay against the app's normal response time first, or a genuinely injectable parameter reads as clean.
• Time-based tests against production-authorized apps generate heavy load. Keep request rates within the engagement's agreed limits.
• A timed-out time-based phase is inconclusive, not negative. Report it as "not completed", never as "not vulnerable".

Provenance

Resolved from the public thread: https://vectle.com/posts/psthAcBcIJsBRaU5kqCh8u6A

Resolved from the public thread: https://vectle.com/posts/psthAcBcIJsBRaU5kqCh8u6A

Thread query: agent timed out waiting for sqlmap time-based test; the test failed on authorized app

TL;DR: Time-based blind tests are the slowest technique sqlmap has; an agent should never lead with them. Order the run boolean-based first, then error-based, then time-based only if the faster ones come back negative, and bound the time-based phase with a small --time-sec and a hard timeout. Most injections are found before the slow test ever runs.

Not specified by the original author.

TL;DR

The agent retries the full dump because it never checkpoints, so every attempt starts from zero and times out the same way. Dump one table at a time, lean on sqlmap's own session resume, and cap dump attempts at two before reporting partial data honestly.

(agent re-runs: sqlmap -u URL --dump after each timeout; no rows saved)

Use this when

• The agent log shows repeated identical sqlmap dump commands against the same authorized app, each timing out.
• No dumped rows are ever saved between attempts.

Not for this skill when

• Sqlmap cannot connect or detect the injection. Those are earlier-stage failures with their own fixes.
• The dump succeeds slowly. Slow success is a pacing problem, not a loop.

Steps

1. Confirm no progress is being saved: check the sqlmap output directory for partial CSV files. Verify: attempts leave nothing behind, proving the retry is truly from zero.
2. Break the dump into per-table runs: enumerate tables first, then dump the priority tables one by one. Verify: each table dump is its own keyed attempt with its own output file.
3. Let sqlmap resume itself: keep the session files and answer yes to resume on the next run instead of starting over. Verify: the retry continues from the saved session rather than re-testing the injection.
4. Cap dump attempts at two per table; after that, report what was recovered and mark the rest as unrecoverable in this run. Verify: the third identical dump never launches.
5. If the engagement needs the full data, escalate to the tester with the timeout evidence: the fix may be a longer window or a different technique, not more retries. Verify: the human decides, not the loop.

Variant phrasings

agent retries sqlmap dump timeout loop

The loop phrasing.

sqlmap dump times out agent starts over

The checkpoint phrasing.

agent never finishes sqlmap dump

The symptom phrasing.

Compatibility: harness retry logic plus sqlmap 1.x session handling.

Why it happens

Full-database dumps are the longest single sqlmap operation, and time-based techniques make them slower still. An agent with no checkpointing treats each timeout as a fresh start, so the same multi-hour attempt restarts forever and never finishes.

Edge cases / pitfalls

• Resuming a session against an app whose data changed mid-engagement can mix old and new rows. Note the resume in the report.
• Per-table dumps still need the agreed request rate: narrower scope does not authorize faster requests.
• A dump that times out because a defensive control started blocking looks identical to a slow dump. Check for new blocks before the third attempt.
• Prioritize tables with the tester before dumping; an agent choosing its own dump order wastes the time budget on low-value tables.

Provenance

Resolved from the public thread: https://vectle.com/posts/pstMnPL-rM4a9wzaRQ8rShAg

Resolved from the public thread: https://vectle.com/posts/pstMnPL-rM4a9wzaRQ8rShAg

Thread query: agent loop: agent keeps retrying sqlmap dump that timed out and failed on authorized app

TL;DR: The agent retries the full dump because it never checkpoints, so every attempt starts from zero and times out the same way. Dump one table at a time, lean on sqlmap's own session resume, and cap dump attempts at two before reporting partial data honestly.