CVE-2021-28940

moderate-risk
Published 2021-04-02

Because of a incorrect escaped exec command in MagpieRSS in 0.72 in the /extlib/Snoopy.class.inc file, it is possible to add a extra command to the curl binary. This creates an issue on the /scripts/magpie_debug.php and /scripts/magpie_simple.php page that if you send a specific https url in the RSS URL field, you are able to execute arbitrary commands.

Do I need to act?

~
4.6% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
9
CVSS 9.8/10 Critical
NETWORK / LOW complexity

Affected Products (1)

Magpierss

Affected Vendors

Magpierss Project

References (6)

Third Party Advisory https://github.com/kellan/magpierss/blob/04d2a88b97fdba5813d01dc0d56c772d97360bb...
Exploit https://pastebin.com/kpzHKKJu
Exploit https://www.exploit-db.com/exploits/49643
Third Party Advisory https://github.com/kellan/magpierss/blob/04d2a88b97fdba5813d01dc0d56c772d97360bb...
Exploit https://pastebin.com/kpzHKKJu
Exploit https://www.exploit-db.com/exploits/49643
45
/ 100
moderate-risk
Severity 32/34 · Critical
Exploitability 8/34 · Low
Exposure 5/34 · Minimal