Risk | Medium |
Patch available | YES |
Number of vulnerabilities | 1 |
CVE-ID | CVE-2021-22876 |
CWE-ID | CWE-200 |
Exploitation vector | Network |
Public exploit | N/A |
Vulnerable software Subscribe |
curl (Alpine package) Operating systems & Components / Operating system package or component |
Vendor | Alpine Linux Development Team |
Security Bulletin
This security bulletin contains one medium risk vulnerability.
EUVDB-ID: #VU51821
Risk: Medium
CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-22876
CWE-ID:
CWE-200 - Information exposure
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to libcurl does not strip off user credentials from the URL when automatically populating the Referer:
HTTP request header field in outgoing HTTP requests and therefore
risks leaking sensitive data to the server that is the target of the
second HTTP request.
Install update from vendor's website.
Vulnerable software versionscurl (Alpine package): 7.19.6-r0 - 7.75.0-r0
CPE2.3http://git.alpinelinux.org/aports/commit/?id=c9e14a70b6c1f965cd7a4079799dd2e3daf531a5
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.