Auth bypass in Apache Hadoop
CVE-2020-9492
In Apache Hadoop 3.2.0 to 3.2.1, 3.0.0-alpha1 to 3.1.3, and 2.0.0-alpha to 2.10.0, WebHDFS client might send SPNEGO authorization header to remote URL without proper verification.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.045 (91.5th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 91st percentile — 91.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.044 · newest: 0.045 · change: +0.001
Affected products
- Apache Hadoop
- Apache Solr — versions 8.6.0, 8.6.2
- Oracle Financial Services Crime And Compliance Management Studio — versions 8.0.8.2.0, 8.0.8.3.0
- Apache Hadoop — versions Apache Hadoop 3.2.0 to 3.2.1, 3.0.0-alpha1 to 3.1.3, 2.0.0-alpha to 2.10.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- lists.apache.org/thread.html/r513758942356ccd0d14538ba18a09903fc72716d74be1cb72… (Mailing List, Vendor Advisory)
- lists.apache.org/thread.html/rca4516b00b55b347905df45e5d0432186248223f30497db87… (mailing-list)
- lists.apache.org/thread.html/r79323adac584edab99fd5e4b52a013844b784a5d4b600da06… (mailing-list)
- lists.apache.org/thread.html/r941e9be04efe0f455d20aeac88516c0848decd7e7b1d93d56… (mailing-list)
- lists.apache.org/thread.html/rc0057ebf32b646ab47f7f5744a8948332e015c39044cbb9d8… (mailing-list)
- lists.apache.org/thread.html/r0a534f1cde7555f7208e9f9b791c1ab396d215eaaef283b3a… (mailing-list)
- lists.apache.org/thread.html/r6341f2a468ced8872a71997aa1786ce036242413484f0fa68… (mailing-list)
- lists.apache.org/thread.html/r9328eb49305e4cacc80e182bfd8a2efd8e640d940e24f5bfd… (mailing-list)
- lists.apache.org/thread.html/r4a57de5215494c35c8304cf114be75d42df7abc6c0c54bf16… (mailing-list)
- lists.apache.org/thread.html/r6c2fa7949738e9d39606f1d7cd890c93a2633e3357c9aeaf8… (mailing-list)
Frequently asked questions
- What is CVE-2020-9492?
- CVE-2020-9492 is a high-severity vulnerability in Apache Hadoop, classified under Incorrect Authorization. CVSS score: 8.8/10. Published 2021-01-26.
- How severe is CVE-2020-9492?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2020-9492 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.