CVE-2019-15130

The Recruitment module in Humanica Humatrix 7 1.0.0.203 and 1.0.0.681 allows an unauthenticated attacker to upload any file type to a candidates profile picture folder via a crafted recruitment_online/personalData/act_personaltab.cfm multiple-part POST request with a predictable WRC01_USERID parameter. Moreover, the attacker can upload executable content (e.g., asp or aspx) for executing OS commands on the server.

Weakness

The product uses insufficiently random numbers or values in a security context that depends on unpredictable numbers.

Affected Software

Potential Mitigations

• Use a well-vetted algorithm that is currently considered to be strong by experts in the field, and select well-tested implementations with adequate length seeds.
• In general, if a pseudo-random number generator is not advertised as being cryptographically secure, then it is probably a statistical PRNG and should not be used in security-sensitive contexts.
• Pseudo-random number generators can produce predictable numbers if the generator is known and the seed can be guessed. A 256-bit seed is a good starting point for producing a “random enough” number.

Related Attack Patterns

• https://cwe.mitre.org/data/definitions/112.html
• https://cwe.mitre.org/data/definitions/485.html
• https://cwe.mitre.org/data/definitions/59.html

References

• https://gist.github.com/izadgot/38a7dd553f8024ed3154134dae0414fd