An authorization bypass vulnerability was found in Ceph versions 15.2.0 before 15.2.2, where the ceph-mon and ceph-mgr daemons do not properly restrict access, resulting in gaining access to unauthorized resources. This flaw allows an authenticated client to modify the configuration and possibly conduct further attacks.

There are packages installed that are affected by multiple vulnerabilities referenced in the following CVEs:

  - An authorization bypass vulnerability was found in Ceph versions 15.2.0 before 15.2.2, where the ceph-mon
    and ceph-mgr daemons do not properly restrict access, resulting in gaining access to unauthorized
    resources. This flaw allows an authenticated client to modify the configuration and possibly conduct
    further attacks. (CVE-2020-10736)

  - A flaw was found in the Red Hat Ceph Storage RadosGW (Ceph Object Gateway). The vulnerability is related
    to the injection of HTTP headers via a CORS ExposeHeader tag. The newline character in the ExposeHeader
    tag in the CORS configuration file generates a header injection in the response when the CORS request is
    made. Ceph versions 3.x and 4.x are vulnerable to this issue. (CVE-2020-10753)

  - A flaw was found in the Cephx authentication protocol in versions before 15.2.6 and before 14.2.14, where
    it does not verify Ceph clients correctly and is then vulnerable to replay attacks in Nautilus. This flaw
    allows an attacker with access to the Ceph cluster network to authenticate with the Ceph service via a
    packet sniffer and perform actions allowed by the Ceph service. This issue is a reintroduction of
    CVE-2018-1128, affecting the msgr2 protocol. The msgr 2 protocol is used for all communication except
    older clients that do not support the msgr2 protocol. The msgr1 protocol is not affected. The highest
    threat from this vulnerability is to confidentiality, integrity, and system availability. (CVE-2020-25660)

The remote Ubuntu 20.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-4706-1 advisory.

    Olle Segerdahl found that ceph-mon and ceph-mgr daemons did not properly restrict access, resulting in     gaining access to unauthorized resources. An authenticated user could use this vulnerability to modify the     configuration and possibly conduct further attacks. (CVE-2020-10736)

    Adam Mohammed found that Ceph Object Gateway was vulnerable to HTTP header injection via a CORS     ExposeHeader tag. An attacker could use this to gain access or cause a crash. (CVE-2020-10753)

    Ilya Dryomov found that Cephx authentication did not verify Ceph clients correctly and was then vulnerable     to replay attacks in Nautilus. An attacker could use the Ceph cluster network to authenticate via a packet     sniffer and perform actions. This issue is a reintroduction of CVE-2018-1128. (CVE-2020-25660)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Severity
403792	Alpine: ceph16: security update to 15.2.6-r0	Tenable Cloud Security	Alpine Linux Local Security Checks	high
403792	Alpine: ceph16: security update to 15.2.6-r0	Tenable Self-Hosted Container Security	Alpine Linux Local Security Checks	high
403785	Alpine: ceph: security update to 15.2.6-r0	Tenable Cloud Security	Alpine Linux Local Security Checks	high
403785	Alpine: ceph: security update to 15.2.6-r0	Tenable Self-Hosted Container Security	Alpine Linux Local Security Checks	high
145517	Ubuntu 20.04 LTS : Ceph vulnerabilities (USN-4706-1)	Nessus	Ubuntu Local Security Checks	high

Detections

Analytics

CVE-2020-10736

high

Tenable Plugins

high

high

high

high

high