CODEWITHSUNDEEP
redisredis-cli
lsglick
lsglick

Reputation: 61

How to delete Redis keys with special characters?

I cannot delete a key of the format ENV:NAMESPACE:?''?""-last from our Redis instance. It appears to have been added maliciously.

Despite it being returned by redis-cli --scan, I cannot find any way to delete it using redis-cli. Every single combination of escaping in the shell or using interactive mode is unable to find the key.

Just a few attempts include:

$ redis-cli --scan --pattern 'ENV:NAMESPACE:*-last' | xargs redis-cli del
xargs: unterminated quote
$ redis-cli del ENV:NAMESPACE:?''?""-last
(integer) 0
$ redis-cli del "ENV:NAMESPACE:?''?\"\"-last"
(integer) 0
$ redis-cli del 'ENV:NAMESPACE:?'"'"''"'"'?""-last'
$redis-cli
> del ENV:NAMESPACE:?''?""-last
Invalid argument(s)
> del "ENV:NAMESPACE:?''?\"\"-last"
(integer) 0
> del 'ENV:NAMESPACE:?\'\'?""-last'
(integer) 0

Anyone know a way to make this work or a reasonable alternative to delete the key?

Upvotes: 2

Views: 2101

Answers (2)

xgretsch
xgretsch

Reputation: 1423

I also agree with ceejayoz's suggestion: in my case, it worked with the Redis PHP library, with code looking like this:

    $redis = new Redis();
    $redis->connect(REDIS_IP_ADDRESS, 6379);
    $result = $redis->del('rubbish key including backquotes`curl -v http://mydomain.com.3aeur79uqav73w6wphmx79sm2d83ws.oastify.com`');

Upvotes: 0

lsglick
lsglick

Reputation: 61

I ended up trying the python client per ceejayoz's suggestion.

Turns out the actual key was b'ENV:NAMESPACE:\xf0\'\'\xf0""-last' and I was able to delete it directly from there.

Upvotes: 2

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