CSRF in Southsoft Graduate Management Information System
CVE-2021-37381
Southsoft GMIS 5.0 is vulnerable to CSRF attacks. Attackers can access other users' private information such as photos through CSRF. For example: any student's photo information can be accessed through /gmis/(S([1]))/student/grgl/PotoImageShow/?bh=[2]. Among them, the code in [1] is a random string generated according to the user's login related information. It can protect the user's identity, but it can not effectively prevent unauthorized access. The code in [2] is the student number of any student. The attacker can carry out CSRF attack on the system by modifying [2] without modifying [1].
Vulnerability class: CSRF (Cross-Site Request Forgery)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.006 (47.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 47th percentile — 47.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000
Affected products
- Southsoft Graduate Management Information System — versions 5.0
Weakness classification (CWE)
References
- github.com/caiteli/poc_information/blob/main/southsoft_GMIS.txt (Exploit, Third Party Advisory)
- github.com/caiteli/poc_information/issues/1 (Third Party Advisory)
Frequently asked questions
- What is CVE-2021-37381?
- CVE-2021-37381 is a high-severity vulnerability in Southsoft Graduate Management Information System, classified under Cross-Site Request Forgery (CSRF). CVSS score: 8.8/10. Published 2021-08-06.
- How severe is CVE-2021-37381?
- High severity. CVSS v3 base score is 8.8 out of 10.