apisix/batch-requests plugin allows overwriting the X-REAL-IP header

published 2022-02-11 4 y ago modified 2026-09-08 2 mo ago also BIT-apisix-2022-24112 , EUVD-2022-29024

cvss: 9.8; version 3.1, CNA
cisa kev: Exploited; added 2022-08-25
epss: 96.1%; EPSS 96.1% chance of exploitation in 30 days, percentile 99.8%
public exploits: 2; Metasploit, Exploit-DB, plus a Nuclei check

An attacker can abuse the batch-requests plugin to send requests to bypass the IP restriction of Admin API. A default configuration of Apache APISIX (with default API key) is vulnerable to remote code execution. When the admin key was changed or the port of Admin API was changed to a port different from the data panel, the impact is lower. But there is still a risk to bypass the IP restriction of Apache APISIX's data panel. There is a check in the batch-requests plugin which overrides the client IP with its real remote IP. But due to a bug in the code, this check can be bypassed.

Patch / fix

cisa required action Apply updates per vendor instructions.

fixed in 2

bitnami apisix 2.10.4, 2.12.1
Apache Software Foundation Apache APISIX 2.10.4, 2.12.1

Timeline

2020-12-07 First public exploit (Metasploit exploit/multi/http/apache_apisix_api_default_token_rce)
2022-02-11 Published
2022-08-25 Added to CISA KEV
2022-09-15 CISA patch deadline
2025-01-29 CISA SSVC: exploitation active

Known exploited

Added: 4 y ago (2022-08-25)
Patch by: 2022-09-15 (4 y ago)
Ransomware: Not known
Required action: Apply updates per vendor instructions.
Vendor, product: Apache, APISIX
CISA name: Apache APISIX Authentication Bypass Vulnerability

CISA SSVC

Exploitation: Active, exploited in the wild
Automatable: yes
Technical impact: total
Assessed: 21 mo ago (2025-01-29)

Exploit prediction

96.07% chance of exploitation in the next 30 days, higher than 99.8% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

Metasploit exploit/multi/http/apache_apisix_api_default_token_rce APISIX Admin API default access token RCE metasploit exploit, excellent rank, 2020-12-07
EDB-50829 Apache APISIX 2.12.1 - Remote Code Execution (RCE) remote, 2022-03-16
Nuclei template Apache APISIX - Remote Code Execution nuclei detection template
packetstormsecurity.com http://packetstormsecurity.com/files/166228/Apache-APISIX-Remote-Code-Execution.html referenced PoC, tagged "exploit" by a source, unverified
packetstormsecurity.com http://packetstormsecurity.com/files/166328/Apache-APISIX-2.12.1-Remote-Code-Execution.html referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
CISA ADP	3.1	9.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD	3.1	9.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CNA	3.1	9.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD	2.0	7.5	AV:N/AC:L/Au:N/C:P/I:P/A:P
OSV	3.1	9.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected packages

ecosystem	package	affected	fixed in
bitnami	apisix	<2.10.4 >=2.11.0, <2.12.1	2.10.4 2.12.1

Affected products

Apache Software Foundation Apache APISIX

Classification

Weakness

CWE-290 Authentication Bypass by Spoofing

References

packetstormsecurity.com /files/166228/Apache-APISIX-Remote-Code-Execution.html
exploit, third-party-advisory, vdb-entry, advisory
packetstormsecurity.com /files/166328/Apache-APISIX-2.12.1-Remote-Code-Execution.html
exploit, third-party-advisory, vdb-entry, advisory
lists.apache.org /thread/lcdqywz8zy94mdysk7p3gfdgn51jmt94
mailing-list, mitigation, vendor-advisory, advisory
openwall.com /lists/oss-security/2022/02/11/3
mailing-list, mitigation, third-party-advisory, advisory
cisa.gov /known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-24112
government-resource, third-party-advisory, us-government-resource, advisory
nvd.nist.gov /vuln/detail/CVE-2022-24112
web

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary